221655700134730 has 128 divisors (see below), whose sum is σ = 418445967340800. Its totient is φ = 84475366170624.

The previous prime is 221655700134727. The next prime is 221655700134751. The reversal of 221655700134730 is 37431007556122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1181005336 + ... + 1181193004.

It is an arithmetic number, because the mean of its divisors is an integer number (3269109119850).

Almost surely, 2^{221655700134730} is an apocalyptic number.

221655700134730 is a deficient number, since it is larger than the sum of its proper divisors (196790267206070).

221655700134730 is a wasteful number, since it uses less digits than its factorization.

221655700134730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188248.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 221655700134730 in words is "two hundred twenty-one trillion, six hundred fifty-five billion, seven hundred million, one hundred thirty-four thousand, seven hundred thirty".