212013108 has 36 divisors (see below), whose sum is σ = 550409860. Its totient is φ = 68760576.

The previous prime is 212013107. The next prime is 212013119. The reversal of 212013108 is 801310212.

It can be written as a sum of positive squares in 2 ways, for example, as 85045284 + 126967824 = 9222^2 + 11268^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 (212013101) 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, 78253 + ... + 80916.

Almost surely, 2^212013108 is an apocalyptic number.

It is an amenable number.

212013108 is an abundant number, since it is smaller than the sum of its proper divisors (338396752).

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

212013108 is a wasteful number, since it uses less digits than its factorization.

212013108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159216 (or 159211 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 212013108 is about 14560.6699021714. The cubic root of 212013108 is about 596.2854847492.

The spelling of 212013108 in words is "two hundred twelve million, thirteen thousand, one hundred eight".