10020012210021 has 16 divisors (see below), whose sum is σ = 14610908778048. Its totient is φ = 6057590688000.

The previous prime is 10020012209993. The next prime is 10020012210059. The reversal of 10020012210021 is 12001221002001.

It is not a de Polignac number, because 10020012210021 - 2¹⁷ = 10020012078949 is a prime.

It is a super-2 number, since 2×10020012210021² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10020012209979 and 10020012210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020012210721) 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, 378586186 + ... + 378612651.

It is an arithmetic number, because the mean of its divisors is an integer number (913181798628).

Almost surely, 2^{10020012210021} is an apocalyptic number.

10020012210021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10020012210021 is a deficient number, since it is larger than the sum of its proper divisors (4590896568027).

10020012210021 is a wasteful number, since it uses less digits than its factorization.

10020012210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757199252.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10020012210021 its reverse (12001221002001), we get a palindrome (22021233212022).

The spelling of 10020012210021 in words is "ten trillion, twenty billion, twelve million, two hundred ten thousand, twenty-one".