102012000022021 has 4 divisors (see below), whose sum is σ = 102012041696032. Its totient is φ = 102011958348012.

The previous prime is 102012000022019. The next prime is 102012000022063. The reversal of 102012000022021 is 120220000210201.

It is a happy number.

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 102012000022021 - 2¹ = 102012000022019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102012000021992 and 102012000022010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012000022081) 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, 16919745 + ... + 22142758.

It is an arithmetic number, because the mean of its divisors is an integer number (25503010424008).

Almost surely, 2^{102012000022021} is an apocalyptic number.

It is an amenable number.

102012000022021 is a deficient number, since it is larger than the sum of its proper divisors (41674011).

102012000022021 is an equidigital number, since it uses as much as digits as its factorization.

102012000022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41674010.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102012000022021 its reverse (120220000210201), we get a palindrome (222232000232222).

The spelling of 102012000022021 in words is "one hundred two trillion, twelve billion, twenty-two thousand, twenty-one".