221422053125220 has 48 divisors (see below), whose sum is σ = 619982646998400. Its totient is φ = 59045795286016.

The previous prime is 221422053125213. The next prime is 221422053125237. The reversal of 221422053125220 is 22521350224122.

It is a super-2 number, since 2×221422053125220² (a number of 29 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 46585684 + ... + 51118196.

It is an arithmetic number, because the mean of its divisors is an integer number (12916305145800).

Almost surely, 2^{221422053125220} is an apocalyptic number.

221422053125220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221422053125220 is an abundant number, since it is smaller than the sum of its proper divisors (398560593873180).

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

221422053125220 is a wasteful number, since it uses less digits than its factorization.

221422053125220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5346724 (or 5346722 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 221422053125220 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, fifty-three million, one hundred twenty-five thousand, two hundred twenty".