22012120001057 has 2 divisors, whose sum is σ = 22012120001058. Its totient is φ = 22012120001056.

The previous prime is 22012120001009. The next prime is 22012120001129. The reversal of 22012120001057 is 75010002121022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13023372481681 + 8988747519376 = 3608791^2 + 2998124^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012120001057 - 2³⁴ = 21994940131873 is a prime.

It is a super-2 number, since 2×22012120001057² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22012120001857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006060000528 + 11006060000529.

It is an arithmetic number, because the mean of its divisors is an integer number (11006060000529).

Almost surely, 2^{22012120001057} is an apocalyptic number.

It is an amenable number.

22012120001057 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012120001057 is an equidigital number, since it uses as much as digits as its factorization.

22012120001057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 22012120001057 its reverse (75010002121022), we get a palindrome (97022122122079).

The spelling of 22012120001057 in words is "twenty-two trillion, twelve billion, one hundred twenty million, one thousand, fifty-seven".