21942238092 has 96 divisors (see below), whose sum is σ = 53968803840. Its totient is φ = 6929763840.

The previous prime is 21942238067. The next prime is 21942238117. The reversal of 21942238092 is 29083224912.

It is an interprime number because it is at equal distance from previous prime (21942238067) and next prime (21942238117).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3771778 + ... + 3777590.

It is an arithmetic number, because the mean of its divisors is an integer number (562175040).

Almost surely, 2^21942238092 is an apocalyptic number.

It is an amenable number.

21942238092 is an abundant number, since it is smaller than the sum of its proper divisors (32026565748).

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

21942238092 is a wasteful number, since it uses less digits than its factorization.

21942238092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6063 (or 6061 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 21942238092 in words is "twenty-one billion, nine hundred forty-two million, two hundred thirty-eight thousand, ninety-two".