201021210021110 has 32 divisors (see below), whose sum is σ = 365628480940800. Its totient is φ = 79567099689600.

The previous prime is 201021210021103. The next prime is 201021210021133. The reversal of 201021210021110 is 11120012120102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54798425 + ... + 58351604.

It is an arithmetic number, because the mean of its divisors is an integer number (11425890029400).

Almost surely, 2^{201021210021110} is an apocalyptic number.

201021210021110 is a deficient number, since it is larger than the sum of its proper divisors (164607270919690).

201021210021110 is a wasteful number, since it uses less digits than its factorization.

201021210021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113151896.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201021210021110 its reverse (11120012120102), we get a palindrome (212141222141212).

The spelling of 201021210021110 in words is "two hundred one trillion, twenty-one billion, two hundred ten million, twenty-one thousand, one hundred ten".