102120221101012 has 6 divisors (see below), whose sum is σ = 178710386926778. Its totient is φ = 51060110550504.

The previous prime is 102120221100977. The next prime is 102120221101027. The reversal of 102120221101012 is 210101122021201.

It can be written as a sum of positive squares in only one way, i.e., 94445082777796 + 7675138323216 = 9718286^2 + 2770404^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12765027637623 + ... + 12765027637630.

Almost surely, 2^{102120221101012} is an apocalyptic number.

It is an amenable number.

102120221101012 is a deficient number, since it is larger than the sum of its proper divisors (76590165825766).

102120221101012 is a wasteful number, since it uses less digits than its factorization.

102120221101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25530055275257 (or 25530055275255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102120221101012 its reverse (210101122021201), we get a palindrome (312221343122213).

The spelling of 102120221101012 in words is "one hundred two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred one thousand, twelve".