102120010202021 has 8 divisors (see below), whose sum is σ = 117864113614464. Its totient is φ = 86664789421200.

The previous prime is 102120010201967. The next prime is 102120010202057. The reversal of 102120010202021 is 120202010021201.

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 102120010202021 - 2³⁸ = 101845132295077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102120010201987 and 102120010202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120010202081) 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, 72220657145 + ... + 72220658558.

It is an arithmetic number, because the mean of its divisors is an integer number (14733014201808).

Almost surely, 2^{102120010202021} is an apocalyptic number.

It is an amenable number.

102120010202021 is a deficient number, since it is larger than the sum of its proper divisors (15744103412443).

102120010202021 is a wasteful number, since it uses less digits than its factorization.

102120010202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144441315811.

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

Adding to 102120010202021 its reverse (120202010021201), we get a palindrome (222322020223222).

The spelling of 102120010202021 in words is "one hundred two trillion, one hundred twenty billion, ten million, two hundred two thousand, twenty-one".