221534403653032 has 8 divisors (see below), whose sum is σ = 415377006849450. Its totient is φ = 110767201826512.

The previous prime is 221534403653023. The next prime is 221534403653033. The reversal of 221534403653032 is 230356304435122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 197871880089636 + 23662523563396 = 14066694^2 + 4864414^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 221534403653032.

It is not an unprimeable number, because it can be changed into a prime (221534403653033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13845900228307 + ... + 13845900228322.

Almost surely, 2^{221534403653032} is an apocalyptic number.

It is an amenable number.

221534403653032 is a deficient number, since it is larger than the sum of its proper divisors (193842603196418).

221534403653032 is a wasteful number, since it uses less digits than its factorization.

221534403653032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27691800456635 (or 27691800456631 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 43.

The spelling of 221534403653032 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred three million, six hundred fifty-three thousand, thirty-two".