21622177554274 has 16 divisors (see below), whose sum is σ = 36134548177536. Its totient is φ = 9619150555600.

The previous prime is 21622177554203. The next prime is 21622177554281. The reversal of 21622177554274 is 47245577122612.

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, 10455597397 + ... + 10455599464.

It is an arithmetic number, because the mean of its divisors is an integer number (2258409261096).

Almost surely, 2^{21622177554274} is an apocalyptic number.

21622177554274 is a deficient number, since it is larger than the sum of its proper divisors (14512370623262).

21622177554274 is a wasteful number, since it uses less digits than its factorization.

21622177554274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20911196921.

The product of its digits is 13171200, while the sum is 55.

The spelling of 21622177554274 in words is "twenty-one trillion, six hundred twenty-two billion, one hundred seventy-seven million, five hundred fifty-four thousand, two hundred seventy-four".