102121212220010 has 32 divisors (see below), whose sum is σ = 185447640961872. Its totient is φ = 40486393615360.

The previous prime is 102121212220007. The next prime is 102121212220031. The reversal of 102121212220010 is 10022212121201.

102121212220010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4570646340649 + 97550565879361 = 2137907^2 + 9876769^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79863500 + ... + 81132120.

Almost surely, 2^{102121212220010} is an apocalyptic number.

102121212220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121212220010 is a deficient number, since it is larger than the sum of its proper divisors (83326428741862).

102121212220010 is a wasteful number, since it uses less digits than its factorization.

102121212220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339978.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102121212220010 its reverse (10022212121201), we get a palindrome (112143424341211).

The spelling of 102121212220010 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, ten".