221650343056122 has 16 divisors (see below), whose sum is σ = 443303508389952. Its totient is φ = 73882977305760.

The previous prime is 221650343056057. The next prime is 221650343056127.

221650343056122 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (221650343056127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116573254 + ... + 118459377.

It is an arithmetic number, because the mean of its divisors is an integer number (27706469274372).

Almost surely, 2^{221650343056122} is an apocalyptic number.

221650343056122 is an abundant number, since it is smaller than the sum of its proper divisors (221653165333830).

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

221650343056122 is a wasteful number, since it uses less digits than its factorization.

221650343056122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235189813.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 221650343056122 in words is "two hundred twenty-one trillion, six hundred fifty billion, three hundred forty-three million, fifty-six thousand, one hundred twenty-two".