1221341101 has 8 divisors (see below), whose sum is σ = 1274851584. Its totient is φ = 1167864720.

The previous prime is 1221341089. The next prime is 1221341113. The reversal of 1221341101 is 1011431221.

It is an interprime number because it is at equal distance from previous prime (1221341089) and next prime (1221341113).

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 1221341101 - 2²³ = 1212952493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221341701) 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, 88095 + ... + 101011.

It is an arithmetic number, because the mean of its divisors is an integer number (159356448).

Almost surely, 2^1221341101 is an apocalyptic number.

It is an amenable number.

1221341101 is a deficient number, since it is larger than the sum of its proper divisors (53510483).

1221341101 is a wasteful number, since it uses less digits than its factorization.

1221341101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17051.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1221341101 is about 34947.6909251527. The cubic root of 1221341101 is about 1068.9211185441.

Adding to 1221341101 its reverse (1011431221), we get a palindrome (2232772322).

The spelling of 1221341101 in words is "one billion, two hundred twenty-one million, three hundred forty-one thousand, one hundred one".