201021211022102 has 16 divisors (see below), whose sum is σ = 301776437490000. Its totient is φ = 100429066902528.

The previous prime is 201021211022089. The next prime is 201021211022123. The reversal of 201021211022102 is 201220112120102.

201021211022102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201021211022102² (a number of 29 digits) contains 22 as substring.

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, 269053733 + ... + 269799839.

It is an arithmetic number, because the mean of its divisors is an integer number (18861027343125).

Almost surely, 2^{201021211022102} is an apocalyptic number.

201021211022102 is a deficient number, since it is larger than the sum of its proper divisors (100755226467898).

201021211022102 is a wasteful number, since it uses less digits than its factorization.

201021211022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855215.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201021211022102 its reverse (201220112120102), we get a palindrome (402241323142204).

The spelling of 201021211022102 in words is "two hundred one trillion, twenty-one billion, two hundred eleven million, twenty-two thousand, one hundred two".