2123219970 has 24 divisors (see below), whose sum is σ = 5520372156. Its totient is φ = 566191968.

The previous prime is 2123219933. The next prime is 2123219993. The reversal of 2123219970 is 799123212.

It can be written as a sum of positive squares in 2 ways, for example, as 2114804169 + 8415801 = 45987^2 + 2901^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11795577 + ... + 11795756.

Almost surely, 2^2123219970 is an apocalyptic number.

2123219970 is an abundant number, since it is smaller than the sum of its proper divisors (3397152186).

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

2123219970 is a wasteful number, since it uses less digits than its factorization.

2123219970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23591346 (or 23591343 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 2123219970 is about 46078.4111054190. The cubic root of 2123219970 is about 1285.2817179217.

The spelling of 2123219970 in words is "two billion, one hundred twenty-three million, two hundred nineteen thousand, nine hundred seventy".