22051277998 has 16 divisors (see below), whose sum is σ = 33174847296. Its totient is φ = 10993029120.

The previous prime is 22051277977. The next prime is 22051278023. The reversal of 22051277998 is 89977215022.

It is a happy number.

It is a super-2 number, since 2×22051277998² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1503790 + ... + 1518382.

It is an arithmetic number, because the mean of its divisors is an integer number (2073427956).

Almost surely, 2^22051277998 is an apocalyptic number.

22051277998 is a deficient number, since it is larger than the sum of its proper divisors (11123569298).

22051277998 is a wasteful number, since it uses less digits than its factorization.

22051277998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16779.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 22051277998 in words is "twenty-two billion, fifty-one million, two hundred seventy-seven thousand, nine hundred ninety-eight".