221155196533804 has 24 divisors (see below), whose sum is σ = 416917611435248. Its totient is φ = 102040986150720.

The previous prime is 221155196533793. The next prime is 221155196533847. The reversal of 221155196533804 is 408335691551122.

It is a happy number.

It is a super-2 number, since 2×221155196533804² (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 7 ways as a sum of consecutive naturals, for example, 638221347 + ... + 638567770.

Almost surely, 2^{221155196533804} is an apocalyptic number.

It is an amenable number.

221155196533804 is a deficient number, since it is larger than the sum of its proper divisors (195762414901444).

221155196533804 is a wasteful number, since it uses less digits than its factorization.

221155196533804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276792465 (or 1276792463 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 55.

The spelling of 221155196533804 in words is "two hundred twenty-one trillion, one hundred fifty-five billion, one hundred ninety-six million, five hundred thirty-three thousand, eight hundred four".