201020021022102 has 16 divisors (see below), whose sum is σ = 402661433152512. Its totient is φ = 66903108489320.

The previous prime is 201020021022059. The next prime is 201020021022137. The reversal of 201020021022102 is 201220120020102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25891291974 + ... + 25891299737.

It is an arithmetic number, because the mean of its divisors is an integer number (25166339572032).

Almost surely, 2^{201020021022102} is an apocalyptic number.

201020021022102 is an abundant number, since it is smaller than the sum of its proper divisors (201641412130410).

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

201020021022102 is a wasteful number, since it uses less digits than its factorization.

201020021022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51782592363.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201020021022102 its reverse (201220120020102), we get a palindrome (402240141042204).

The spelling of 201020021022102 in words is "two hundred one trillion, twenty billion, twenty-one million, twenty-two thousand, one hundred two".