121422311 has 4 divisors (see below), whose sum is σ = 123713352. Its totient is φ = 119131272.

The previous prime is 121422281. The next prime is 121422341. The reversal of 121422311 is 113224121.

121422311 = T₂₁₁₄ + T₂₁₁₅ + ... + T₂₁₆₆.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113224121 = 31 ⋅3652391.

It is an interprime number because it is at equal distance from previous prime (121422281) and next prime (121422341).

It is a cyclic number.

It is not a de Polignac number, because 121422311 - 2¹⁴ = 121405927 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 121422311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121422341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145441 + ... + 1145546.

It is an arithmetic number, because the mean of its divisors is an integer number (30928338).

Almost surely, 2^121422311 is an apocalyptic number.

121422311 is a deficient number, since it is larger than the sum of its proper divisors (2291041).

121422311 is an equidigital number, since it uses as much as digits as its factorization.

121422311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291040.

The product of its digits is 96, while the sum is 17.

The square root of 121422311 is about 11019.1792344076. The cubic root of 121422311 is about 495.1834996303.

Adding to 121422311 its reverse (113224121), we get a palindrome (234646432).

The spelling of 121422311 in words is "one hundred twenty-one million, four hundred twenty-two thousand, three hundred eleven".