122021431 has 8 divisors (see below), whose sum is σ = 139614080. Its totient is φ = 104469048.

The previous prime is 122021429. The next prime is 122021437. The reversal of 122021431 is 134120221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122021431 - 2¹ = 122021429 is a prime.

It is a super-2 number, since 2×122021431² = 29778459246575522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3261 + ... + 15958.

It is an arithmetic number, because the mean of its divisors is an integer number (17451760).

Almost surely, 2^122021431 is an apocalyptic number.

122021431 is a deficient number, since it is larger than the sum of its proper divisors (17592649).

122021431 is an equidigital number, since it uses as much as digits as its factorization.

122021431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20133.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 122021431 is about 11046.3311103733. The cubic root of 122021431 is about 495.9966058886.

Adding to 122021431 its reverse (134120221), we get a palindrome (256141652).

The spelling of 122021431 in words is "one hundred twenty-two million, twenty-one thousand, four hundred thirty-one".