102111012010 has 64 divisors (see below), whose sum is σ = 221211648000. Its totient is φ = 33152023872.

The previous prime is 102111012007. The next prime is 102111012043. The reversal of 102111012010 is 10210111201.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 3174669 + ... + 3206671.

It is an arithmetic number, because the mean of its divisors is an integer number (3456432000).

Almost surely, 2^102111012010 is an apocalyptic number.

102111012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102111012010 is an abundant number, since it is smaller than the sum of its proper divisors (119100635990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102111012010 is a wasteful number, since it uses less digits than its factorization.

102111012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34435.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 102111012010 its reverse (10210111201), we get a palindrome (112321123211).

The spelling of 102111012010 in words is "one hundred two billion, one hundred eleven million, twelve thousand, ten".