121001221200102 has 32 divisors (see below), whose sum is σ = 252533286600192. Its totient is φ = 38578724684544.

The previous prime is 121001221200019. The next prime is 121001221200109. The reversal of 121001221200102 is 201002122100121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001221200109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11733003 + ... + 19485014.

It is an arithmetic number, because the mean of its divisors is an integer number (7891665206256).

Almost surely, 2^{121001221200102} is an apocalyptic number.

121001221200102 is an abundant number, since it is smaller than the sum of its proper divisors (131532065400090).

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

121001221200102 is a wasteful number, since it uses less digits than its factorization.

121001221200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31246132.

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

Adding to 121001221200102 its reverse (201002122100121), we get a palindrome (322003343300223).

The spelling of 121001221200102 in words is "one hundred twenty-one trillion, one billion, two hundred twenty-one million, two hundred thousand, one hundred two".