102020012112 has 40 divisors (see below), whose sum is σ = 263570102656. Its totient is φ = 34004295936.

The previous prime is 102020012089. The next prime is 102020012147. The reversal of 102020012112 is 211210020201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704553 + ... + 836919.

Almost surely, 2^102020012112 is an apocalyptic number.

102020012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102020012112 is an abundant number, since it is smaller than the sum of its proper divisors (161550090544).

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

102020012112 is a wasteful number, since it uses less digits than its factorization.

102020012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148435 (or 148429 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102020012112 its reverse (211210020201), we get a palindrome (313230032313).

The spelling of 102020012112 in words is "one hundred two billion, twenty million, twelve thousand, one hundred twelve".