22222128001 has 2 divisors, whose sum is σ = 22222128002. Its totient is φ = 22222128000.

The previous prime is 22222127989. The next prime is 22222128007. The reversal of 22222128001 is 10082122222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22217393025 + 4734976 = 149055^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222128001 - 2⁹ = 22222127489 is a prime.

It is not a weakly prime, because it can be changed into another prime (22222128007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111064000 + 11111064001.

It is an arithmetic number, because the mean of its divisors is an integer number (11111064001).

Almost surely, 2^22222128001 is an apocalyptic number.

It is an amenable number.

22222128001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222128001 is an equidigital number, since it uses as much as digits as its factorization.

22222128001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 22222128001 in words is "twenty-two billion, two hundred twenty-two million, one hundred twenty-eight thousand, one".