2190222920 has 16 divisors (see below), whose sum is σ = 4928001660. Its totient is φ = 876089152.

The previous prime is 2190222919. The next prime is 2190222949. The reversal of 2190222920 is 292220912.

It can be written as a sum of positive squares in 2 ways, for example, as 2038883716 + 151339204 = 45154^2 + 12302^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27377747 + ... + 27377826.

Almost surely, 2^2190222920 is an apocalyptic number.

2190222920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2190222920 is an abundant number, since it is smaller than the sum of its proper divisors (2737778740).

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

2190222920 is a wasteful number, since it uses less digits than its factorization.

2190222920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54755584 (or 54755580 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2190222920 is about 46799.8175210118. The cubic root of 2190222920 is about 1298.6619210296.

The spelling of 2190222920 in words is "two billion, one hundred ninety million, two hundred twenty-two thousand, nine hundred twenty".