221220506058 has 16 divisors (see below), whose sum is σ = 443694390336. Its totient is φ = 73531272320.

The previous prime is 221220506047. The next prime is 221220506069. The reversal of 221220506058 is 850605022122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221220506047) and next prime (221220506069).

It is a super-2 number, since 2×221220506058² (a number of 23 digits) contains 22 as substring.

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, 52221798 + ... + 52226033.

It is an arithmetic number, because the mean of its divisors is an integer number (27730899396).

Almost surely, 2^221220506058 is an apocalyptic number.

221220506058 is an abundant number, since it is smaller than the sum of its proper divisors (222473884278).

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

221220506058 is a wasteful number, since it uses less digits than its factorization.

221220506058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104448189.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 221220506058 in words is "two hundred twenty-one billion, two hundred twenty million, five hundred six thousand, fifty-eight".