121011212202102 has 20 divisors (see below), whose sum is σ = 271154753268036. Its totient is φ = 40337070733980.

The previous prime is 121011212202043. The next prime is 121011212202103. The reversal of 121011212202102 is 201202212110121.

121011212202102 is a `hidden beast` number, since 1 + 210 + 1 + 1 + 21 + 220 + 210 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011212202103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 373491395524 + ... + 373491395847.

Almost surely, 2^{121011212202102} is an apocalyptic number.

121011212202102 is an abundant number, since it is smaller than the sum of its proper divisors (150143541065934).

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

121011212202102 is an equidigital number, since it uses as much as digits as its factorization.

121011212202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746982791385 (or 746982791376 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121011212202102 its reverse (201202212110121), we get a palindrome (322213424312223).

The spelling of 121011212202102 in words is "one hundred twenty-one trillion, eleven billion, two hundred twelve million, two hundred two thousand, one hundred two".