22151045490 has 32 divisors (see below), whose sum is σ = 60757153920. Its totient is φ = 5063096064.

The previous prime is 22151045489. The next prime is 22151045503. The reversal of 22151045490 is 9454015122.

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, 52740375 + ... + 52740794.

It is an arithmetic number, because the mean of its divisors is an integer number (1898661060).

Almost surely, 2^22151045490 is an apocalyptic number.

22151045490 is an abundant number, since it is smaller than the sum of its proper divisors (38606108430).

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

22151045490 is a wasteful number, since it uses less digits than its factorization.

22151045490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105481186.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 22151045490 in words is "twenty-two billion, one hundred fifty-one million, forty-five thousand, four hundred ninety".