221243103562204 has 6 divisors (see below), whose sum is σ = 387175431233864. Its totient is φ = 110621551781100.

The previous prime is 221243103562153. The next prime is 221243103562223. The reversal of 221243103562204 is 402265301342122.

It is a happy number.

It is a super-2 number, since 2×221243103562204² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27655387945272 + ... + 27655387945279.

Almost surely, 2^{221243103562204} is an apocalyptic number.

It is an amenable number.

221243103562204 is a deficient number, since it is larger than the sum of its proper divisors (165932327671660).

221243103562204 is a wasteful number, since it uses less digits than its factorization.

221243103562204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55310775890555 (or 55310775890553 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 221243103562204 in words is "two hundred twenty-one trillion, two hundred forty-three billion, one hundred three million, five hundred sixty-two thousand, two hundred four".