2102022201021 has 32 divisors (see below), whose sum is σ = 2849862597120. Its totient is φ = 1377928852800.

The previous prime is 2102022201001. The next prime is 2102022201067. The reversal of 2102022201021 is 1201022202012.

It is not a de Polignac number, because 2102022201021 - 2¹⁰ = 2102022199997 is a prime.

It is a super-3 number, since 3×2102022201021³ (a number of 38 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102022201001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233268406 + ... + 233277416.

It is an arithmetic number, because the mean of its divisors is an integer number (89058206160).

Almost surely, 2^{2102022201021} is an apocalyptic number.

It is an amenable number.

2102022201021 is a deficient number, since it is larger than the sum of its proper divisors (747840396099).

2102022201021 is a wasteful number, since it uses less digits than its factorization.

2102022201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13417.

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

Adding to 2102022201021 its reverse (1201022202012), we get a palindrome (3303044403033).

Subtracting from 2102022201021 its reverse (1201022202012), we obtain a palindrome (900999999009).

The spelling of 2102022201021 in words is "two trillion, one hundred two billion, twenty-two million, two hundred one thousand, twenty-one".