212370102 has 24 divisors (see below), whose sum is σ = 525869136. Its totient is φ = 60677136.

The previous prime is 212370079. The next prime is 212370107. The reversal of 212370102 is 201073212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212370107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 842613 + ... + 842864.

It is an arithmetic number, because the mean of its divisors is an integer number (21911214).

Almost surely, 2^212370102 is an apocalyptic number.

212370102 is an abundant number, since it is smaller than the sum of its proper divisors (313499034).

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

212370102 is a wasteful number, since it uses less digits than its factorization.

212370102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685492 (or 1685489 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 212370102 is about 14572.9235913731. The cubic root of 212370102 is about 596.6199781756.

The spelling of 212370102 in words is "two hundred twelve million, three hundred seventy thousand, one hundred two".