121122231102 has 24 divisors (see below), whose sum is σ = 262474992936. Its totient is φ = 40367385936.

The previous prime is 121122231079. The next prime is 121122231127. The reversal of 121122231102 is 201132221121.

It is a super-2 number, since 2×121122231102² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445353 + ... + 663764.

It is an arithmetic number, because the mean of its divisors is an integer number (10936458039).

Almost surely, 2^121122231102 is an apocalyptic number.

121122231102 is an abundant number, since it is smaller than the sum of its proper divisors (141352761834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121122231102 is a wasteful number, since it uses less digits than its factorization.

121122231102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115192 (or 1115189 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121122231102 its reverse (201132221121), we get a palindrome (322254452223).

The spelling of 121122231102 in words is "one hundred twenty-one billion, one hundred twenty-two million, two hundred thirty-one thousand, one hundred two".