102120121210 has 128 divisors (see below), whose sum is σ = 202802434560. Its totient is φ = 36900864000.

The previous prime is 102120121087. The next prime is 102120121217. The reversal of 102120121210 is 12121021201.

102120121210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (102120121217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63784410 + ... + 63786010.

It is an arithmetic number, because the mean of its divisors is an integer number (1584394020).

Almost surely, 2^102120121210 is an apocalyptic number.

102120121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102120121210 is a deficient number, since it is larger than the sum of its proper divisors (100682313350).

102120121210 is a wasteful number, since it uses less digits than its factorization.

102120121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102120121210 its reverse (12121021201), we get a palindrome (114241142411).

The spelling of 102120121210 in words is "one hundred two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred ten".