102120200012021 has 8 divisors (see below), whose sum is σ = 102341210674560. Its totient is φ = 101899191284352.

The previous prime is 102120200011943. The next prime is 102120200012023. The reversal of 102120200012021 is 120210002021201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102120200012021 - 2³⁸ = 101845322105077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102120200011987 and 102120200012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120200012023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170366786 + ... + 170965148.

It is an arithmetic number, because the mean of its divisors is an integer number (12792651334320).

Almost surely, 2^{102120200012021} is an apocalyptic number.

It is an amenable number.

102120200012021 is a deficient number, since it is larger than the sum of its proper divisors (221010662539).

102120200012021 is an equidigital number, since it uses as much as digits as its factorization.

102120200012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967435.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102120200012021 its reverse (120210002021201), we get a palindrome (222330202033222).

The spelling of 102120200012021 in words is "one hundred two trillion, one hundred twenty billion, two hundred million, twelve thousand, twenty-one".