221625266366141 has 24 divisors (see below), whose sum is σ = 243993984213504. Its totient is φ = 201155518080000.

The previous prime is 221625266366123. The next prime is 221625266366167. The reversal of 221625266366141 is 141663662526122.

221625266366141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-221625266366141 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221625266366741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3390236186 + ... + 3390301556.

It is an arithmetic number, because the mean of its divisors is an integer number (10166416008896).

Almost surely, 2^{221625266366141} is an apocalyptic number.

It is an amenable number.

221625266366141 is a deficient number, since it is larger than the sum of its proper divisors (22368717847363).

221625266366141 is a wasteful number, since it uses less digits than its factorization.

221625266366141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109745 (or 109734 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 53.

The spelling of 221625266366141 in words is "two hundred twenty-one trillion, six hundred twenty-five billion, two hundred sixty-six million, three hundred sixty-six thousand, one hundred forty-one".