102120112221010 has 64 divisors (see below), whose sum is σ = 199924726919904. Its totient is φ = 37330907904000.

The previous prime is 102120112220981. The next prime is 102120112221053. The reversal of 102120112221010 is 10122211021201.

It can be written as a sum of positive squares in 16 ways, for example, as 56178787553001 + 45941324668009 = 7495251^2 + 6778003^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318649372 + ... + 318969688.

Almost surely, 2^{102120112221010} is an apocalyptic number.

102120112221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102120112221010 is a deficient number, since it is larger than the sum of its proper divisors (97804614698894).

102120112221010 is a wasteful number, since it uses less digits than its factorization.

102120112221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344719.

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

Adding to 102120112221010 its reverse (10122211021201), we get a palindrome (112242323242211).

The spelling of 102120112221010 in words is "one hundred two trillion, one hundred twenty billion, one hundred twelve million, two hundred twenty-one thousand, ten".