121122100002 has 24 divisors (see below), whose sum is σ = 250885501776. Its totient is φ = 38981823664.

The previous prime is 121122099949. The next prime is 121122100007. The reversal of 121122100002 is 200001221121.

It is not an unprimeable number, because it can be changed into a prime (121122100007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11996748 + ... + 12006839.

It is an arithmetic number, because the mean of its divisors is an integer number (10453562574).

Almost surely, 2^121122100002 is an apocalyptic number.

121122100002 is an abundant number, since it is smaller than the sum of its proper divisors (129763401774).

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

121122100002 is a wasteful number, since it uses less digits than its factorization.

121122100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24003650 (or 24003621 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121122100002 its reverse (200001221121), we get a palindrome (321123321123).

The spelling of 121122100002 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred thousand, two".