221411635356356 has 144 divisors (see below), whose sum is σ = 416376372061440. Its totient is φ = 102984529697280.

The previous prime is 221411635356343. The next prime is 221411635356397. The reversal of 221411635356356 is 653653536114122.

It is a super-2 number, since 2×221411635356356² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221411635356298 and 221411635356307.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62246732930 + ... + 62246736486.

It is an arithmetic number, because the mean of its divisors is an integer number (2891502583760).

Almost surely, 2^{221411635356356} is an apocalyptic number.

It is an amenable number.

221411635356356 is a deficient number, since it is larger than the sum of its proper divisors (194964736705084).

221411635356356 is a wasteful number, since it uses less digits than its factorization.

221411635356356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6122 (or 6101 counting only the distinct ones).

The product of its digits is 11664000, while the sum is 53.

The spelling of 221411635356356 in words is "two hundred twenty-one trillion, four hundred eleven billion, six hundred thirty-five million, three hundred fifty-six thousand, three hundred fifty-six".