22160721441 has 16 divisors (see below), whose sum is σ = 30393937728. Its totient is φ = 14353651200.

The previous prime is 22160721377. The next prime is 22160721469. The reversal of 22160721441 is 14412706122.

It is not a de Polignac number, because 22160721441 - 2⁶ = 22160721377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22160721399 and 22160721408.

It is not an unprimeable number, because it can be changed into a prime (22160721481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344151 + ... + 403436.

It is an arithmetic number, because the mean of its divisors is an integer number (1899621108).

Almost surely, 2^22160721441 is an apocalyptic number.

It is an amenable number.

22160721441 is a deficient number, since it is larger than the sum of its proper divisors (8233216287).

22160721441 is a wasteful number, since it uses less digits than its factorization.

22160721441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747872.

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 22160721441 in words is "twenty-two billion, one hundred sixty million, seven hundred twenty-one thousand, four hundred forty-one".