102020120012021 has 8 divisors (see below), whose sum is σ = 109889834740224. Its totient is φ = 94436576728560.

The previous prime is 102020120011937. The next prime is 102020120012081. The reversal of 102020120012021 is 120210021020201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102020120012021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102020120011987 and 102020120012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020120012081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71542860446 + ... + 71542861871.

It is an arithmetic number, because the mean of its divisors is an integer number (13736229342528).

Almost surely, 2^{102020120012021} is an apocalyptic number.

It is an amenable number.

102020120012021 is a deficient number, since it is larger than the sum of its proper divisors (7869714728203).

102020120012021 is a wasteful number, since it uses less digits than its factorization.

102020120012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143085722371.

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

Adding to 102020120012021 its reverse (120210021020201), we get a palindrome (222230141032222).

The spelling of 102020120012021 in words is "one hundred two trillion, twenty billion, one hundred twenty million, twelve thousand, twenty-one".