10020001122021 has 16 divisors (see below), whose sum is σ = 14574688441920. Its totient is φ = 6072669054720.

The previous prime is 10020001122011. The next prime is 10020001122023. The reversal of 10020001122021 is 12022110002001.

It is not a de Polignac number, because 10020001122021 - 2⁵ = 10020001121989 is a prime.

It is a super-2 number, since 2×10020001122021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10020001121988 and 10020001122006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020001122023) 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, 2111815 + ... + 4949723.

It is an arithmetic number, because the mean of its divisors is an integer number (910918027620).

Almost surely, 2^{10020001122021} is an apocalyptic number.

10020001122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10020001122021 is a deficient number, since it is larger than the sum of its proper divisors (4554687319899).

10020001122021 is a wasteful number, since it uses less digits than its factorization.

10020001122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944916.

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

Adding to 10020001122021 its reverse (12022110002001), we get a palindrome (22042111124022).

The spelling of 10020001122021 in words is "ten trillion, twenty billion, one million, one hundred twenty-two thousand, twenty-one".