221223200104 has 8 divisors (see below), whose sum is σ = 414793500210. Its totient is φ = 110611600048.

The previous prime is 221223200083. The next prime is 221223200117. The reversal of 221223200104 is 401002322122.

It can be written as a sum of positive squares in only one way, i.e., 127090824004 + 94132376100 = 356498^2 + 306810^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×221223200104² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13826449999 + ... + 13826450014.

Almost surely, 2^221223200104 is an apocalyptic number.

It is an amenable number.

221223200104 is a deficient number, since it is larger than the sum of its proper divisors (193570300106).

221223200104 is a wasteful number, since it uses less digits than its factorization.

221223200104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27652900019 (or 27652900015 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 221223200104 its reverse (401002322122), we get a palindrome (622225522226).

The spelling of 221223200104 in words is "two hundred twenty-one billion, two hundred twenty-three million, two hundred thousand, one hundred four".