221465323564122 has 48 divisors (see below), whose sum is σ = 487159489666080. Its totient is φ = 67069097615520.

The previous prime is 221465323564097. The next prime is 221465323564139.

221465323564122 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×221465323564122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93388372 + ... + 95730447.

It is an arithmetic number, because the mean of its divisors is an integer number (10149156034710).

Almost surely, 2^{221465323564122} is an apocalyptic number.

221465323564122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221465323564122 is an abundant number, since it is smaller than the sum of its proper divisors (265694166101958).

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

221465323564122 is a wasteful number, since it uses less digits than its factorization.

221465323564122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189120459 (or 189120448 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 48.

The spelling of 221465323564122 in words is "two hundred twenty-one trillion, four hundred sixty-five billion, three hundred twenty-three million, five hundred sixty-four thousand, one hundred twenty-two".