22112012221129 has 2 divisors, whose sum is σ = 22112012221130. Its totient is φ = 22112012221128.

The previous prime is 22112012221099. The next prime is 22112012221147. The reversal of 22112012221129 is 92112221021122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14044708131129 + 8067304090000 = 3747627^2 + 2840300^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112012221129 - 2²³ = 22112003832521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22112012221097 and 22112012221106.

It is not a weakly prime, because it can be changed into another prime (22112012221529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056006110564 + 11056006110565.

It is an arithmetic number, because the mean of its divisors is an integer number (11056006110565).

Almost surely, 2^{22112012221129} is an apocalyptic number.

It is an amenable number.

22112012221129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112012221129 is an equidigital number, since it uses as much as digits as its factorization.

22112012221129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 22112012221129 in words is "twenty-two trillion, one hundred twelve billion, twelve million, two hundred twenty-one thousand, one hundred twenty-nine".