221544030566252 has 12 divisors (see below), whose sum is σ = 387705356349696. Its totient is φ = 110771071609200.

The previous prime is 221544030566249. The next prime is 221544030566333. The reversal of 221544030566252 is 252665030445122.

It is a super-2 number, since 2×221544030566252² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221544030566197 and 221544030566206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235390124 + ... + 236329427.

It is an arithmetic number, because the mean of its divisors is an integer number (32308779695808).

Almost surely, 2^{221544030566252} is an apocalyptic number.

It is an amenable number.

221544030566252 is a deficient number, since it is larger than the sum of its proper divisors (166161325783444).

221544030566252 is a wasteful number, since it uses less digits than its factorization.

221544030566252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471836968 (or 471836966 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 221544030566252 in words is "two hundred twenty-one trillion, five hundred forty-four billion, thirty million, five hundred sixty-six thousand, two hundred fifty-two".