121123211202 has 48 divisors (see below), whose sum is σ = 312964329600. Its totient is φ = 33101994816.

The previous prime is 121123211161. The next prime is 121123211213. The reversal of 121123211202 is 202112321121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20894827 + ... + 20900622.

It is an arithmetic number, because the mean of its divisors is an integer number (6520090200).

Almost surely, 2^121123211202 is an apocalyptic number.

121123211202 is an abundant number, since it is smaller than the sum of its proper divisors (191841118398).

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

121123211202 is a wasteful number, since it uses less digits than its factorization.

121123211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41795487 (or 41795484 counting only the distinct ones).

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

Adding to 121123211202 its reverse (202112321121), we get a palindrome (323235532323).

The spelling of 121123211202 in words is "one hundred twenty-one billion, one hundred twenty-three million, two hundred eleven thousand, two hundred two".