22251690494 has 32 divisors (see below), whose sum is σ = 36939663360. Its totient is φ = 9968011200.

The previous prime is 22251690479. The next prime is 22251690509. The reversal of 22251690494 is 49409615222.

It is an interprime number because it is at equal distance from previous prime (22251690479) and next prime (22251690509).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2357717 + ... + 2367135.

It is an arithmetic number, because the mean of its divisors is an integer number (1154364480).

Almost surely, 2^22251690494 is an apocalyptic number.

22251690494 is a deficient number, since it is larger than the sum of its proper divisors (14687972866).

22251690494 is a wasteful number, since it uses less digits than its factorization.

22251690494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10976.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 22251690494 in words is "twenty-two billion, two hundred fifty-one million, six hundred ninety thousand, four hundred ninety-four".