102120000212021 has 24 divisors (see below), whose sum is σ = 112588278264000. Its totient is φ = 92555024481920.

The previous prime is 102120000211993. The next prime is 102120000212059. The reversal of 102120000212021 is 120212000021201.

It is a de Polignac number, because none of the positive numbers 2^k-102120000212021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102120000211987 and 102120000212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120000112021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52354730 + ... + 54270228.

It is an arithmetic number, because the mean of its divisors is an integer number (4691178261000).

Almost surely, 2^{102120000212021} is an apocalyptic number.

102120000212021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102120000212021 is a deficient number, since it is larger than the sum of its proper divisors (10468278051979).

102120000212021 is a wasteful number, since it uses less digits than its factorization.

102120000212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916857 (or 1916846 counting only the distinct ones).

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

Adding to 102120000212021 its reverse (120212000021201), we get a palindrome (222332000233222).

The spelling of 102120000212021 in words is "one hundred two trillion, one hundred twenty billion, two hundred twelve thousand, twenty-one".