221430552337356 has 48 divisors (see below), whose sum is σ = 516803879370240. Its totient is φ = 73791244072000.

The previous prime is 221430552337327. The next prime is 221430552337363. The reversal of 221430552337356 is 653733255034122.

221430552337356 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221430552337299 and 221430552337308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1438278775 + ... + 1438432721.

It is an arithmetic number, because the mean of its divisors is an integer number (10766747486880).

Almost surely, 2^{221430552337356} is an apocalyptic number.

It is an amenable number.

221430552337356 is an abundant number, since it is smaller than the sum of its proper divisors (295373327032884).

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

221430552337356 is a wasteful number, since it uses less digits than its factorization.

221430552337356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183934 (or 183932 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 51.

The spelling of 221430552337356 in words is "two hundred twenty-one trillion, four hundred thirty billion, five hundred fifty-two million, three hundred thirty-seven thousand, three hundred fifty-six".