121111022202 has 24 divisors (see below), whose sum is σ = 243977419296. Its totient is φ = 40079868264.

The previous prime is 121111022189. The next prime is 121111022203. The reversal of 121111022202 is 202220111121.

It is not an unprimeable number, because it can be changed into a prime (121111022203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406438 + ... + 638289.

It is an arithmetic number, because the mean of its divisors is an integer number (10165725804).

Almost surely, 2^121111022202 is an apocalyptic number.

121111022202 is an abundant number, since it is smaller than the sum of its proper divisors (122866397094).

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

121111022202 is a wasteful number, since it uses less digits than its factorization.

121111022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045010 (or 1044871 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121111022202 its reverse (202220111121), we get a palindrome (323331133323).

The spelling of 121111022202 in words is "one hundred twenty-one billion, one hundred eleven million, twenty-two thousand, two hundred two".