2212931900 has 72 divisors (see below), whose sum is σ = 5217999360. Its totient is φ = 811512000.

The previous prime is 2212931899. The next prime is 2212931923. The reversal of 2212931900 is 91392122.

2212931900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2212931900² = 9794135188075220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40115 + ... + 77685.

Almost surely, 2^2212931900 is an apocalyptic number.

2212931900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212931900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2608999680).

2212931900 is an abundant number, since it is smaller than the sum of its proper divisors (3005067460).

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

2212931900 is a wasteful number, since it uses less digits than its factorization.

2212931900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37635 (or 37628 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2212931900 is about 47041.8101267373. The cubic root of 2212931900 is about 1303.1348212009.

The spelling of 2212931900 in words is "two billion, two hundred twelve million, nine hundred thirty-one thousand, nine hundred".