121520011710202 has 96 divisors (see below), whose sum is σ = 212209389729792. Its totient is φ = 51120550728576.

The previous prime is 121520011710191. The next prime is 121520011710211. The reversal of 121520011710202 is 202017110025121.

It is a super-2 number, since 2×121520011710202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20109216193 + ... + 20109222235.

It is an arithmetic number, because the mean of its divisors is an integer number (2210514476352).

Almost surely, 2^{121520011710202} is an apocalyptic number.

121520011710202 is a deficient number, since it is larger than the sum of its proper divisors (90689378019590).

121520011710202 is a wasteful number, since it uses less digits than its factorization.

121520011710202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7172 (or 7035 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 25.

Adding to 121520011710202 its reverse (202017110025121), we get a palindrome (323537121735323).

The spelling of 121520011710202 in words is "one hundred twenty-one trillion, five hundred twenty billion, eleven million, seven hundred ten thousand, two hundred two".