102010211022021 has 4 divisors (see below), whose sum is σ = 136013614696032. Its totient is φ = 68006807348012.

The previous prime is 102010211022007. The next prime is 102010211022073. The reversal of 102010211022021 is 120220112010201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102010211022021 - 2¹³ = 102010211013829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102010211022221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17001701837001 + ... + 17001701837006.

It is an arithmetic number, because the mean of its divisors is an integer number (34003403674008).

Almost surely, 2^{102010211022021} is an apocalyptic number.

It is an amenable number.

102010211022021 is a deficient number, since it is larger than the sum of its proper divisors (34003403674011).

102010211022021 is an equidigital number, since it uses as much as digits as its factorization.

102010211022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34003403674010.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102010211022021 its reverse (120220112010201), we get a palindrome (222230323032222).

The spelling of 102010211022021 in words is "one hundred two trillion, ten billion, two hundred eleven million, twenty-two thousand, twenty-one".