2102022000021 has 16 divisors (see below), whose sum is σ = 2893160540160. Its totient is φ = 1356117448560.

The previous prime is 2102022000019. The next prime is 2102022000041. The reversal of 2102022000021 is 1200002202012.

It is not a de Polignac number, because 2102022000021 - 2¹ = 2102022000019 is a prime.

It is a super-3 number, since 3×2102022000021³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102021999970 and 2102022000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102022000041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5524126 + ... + 5892368.

It is an arithmetic number, because the mean of its divisors is an integer number (180822533760).

Almost surely, 2^{2102022000021} is an apocalyptic number.

It is an amenable number.

2102022000021 is a deficient number, since it is larger than the sum of its proper divisors (791138540139).

2102022000021 is a wasteful number, since it uses less digits than its factorization.

2102022000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429656.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2102022000021 its reverse (1200002202012), we get a palindrome (3302024202033).

The spelling of 2102022000021 in words is "two trillion, one hundred two billion, twenty-two million, twenty-one", and thus it is an aban number.