102010011200021 has 2 divisors, whose sum is σ = 102010011200022. Its totient is φ = 102010011200020.

The previous prime is 102010011199981. The next prime is 102010011200029. The reversal of 102010011200021 is 120002110010201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85566459045796 + 16443552154225 = 9250214^2 + 4055065^2 .

It is a cyclic number.

It is not a de Polignac number, because 102010011200021 - 2¹⁴ = 102010011183637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102010011199975 and 102010011200011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102010011200029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005005600010 + 51005005600011.

It is an arithmetic number, because the mean of its divisors is an integer number (51005005600011).

Almost surely, 2^{102010011200021} is an apocalyptic number.

It is an amenable number.

102010011200021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102010011200021 is an equidigital number, since it uses as much as digits as its factorization.

102010011200021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102010011200021 its reverse (120002110010201), we get a palindrome (222012121210222).

The spelling of 102010011200021 in words is "one hundred two trillion, ten billion, eleven million, two hundred thousand, twenty-one".