202101221122011 has 96 divisors (see below), whose sum is σ = 298027738644480. Its totient is φ = 131946677452800.

The previous prime is 202101221122007. The next prime is 202101221122123. The reversal of 202101221122011 is 110221122101202.

202101221122011 is a `hidden beast` number, since 2 + 0 + 210 + 1 + 221 + 1 + 220 + 11 = 666.

It is not a de Polignac number, because 202101221122011 - 2² = 202101221122007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202101221122001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71692521160 + ... + 71692523978.

It is an arithmetic number, because the mean of its divisors is an integer number (3104455610880).

Almost surely, 2^{202101221122011} is an apocalyptic number.

202101221122011 is a deficient number, since it is larger than the sum of its proper divisors (95926517522469).

202101221122011 is a wasteful number, since it uses less digits than its factorization.

202101221122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377 (or 4374 counting only the distinct ones).

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

Adding to 202101221122011 its reverse (110221122101202), we get a palindrome (312322343223213).

The spelling of 202101221122011 in words is "two hundred two trillion, one hundred one billion, two hundred twenty-one million, one hundred twenty-two thousand, eleven".