20122122211253 has 2 divisors, whose sum is σ = 20122122211254. Its totient is φ = 20122122211252.

The previous prime is 20122122211091. The next prime is 20122122211267. The reversal of 20122122211253 is 35211222122102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17153455238929 + 2968666972324 = 4141673^2 + 1722982^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122122211253 - 2³⁶ = 20053402734517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122122211453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061061105626 + 10061061105627.

It is an arithmetic number, because the mean of its divisors is an integer number (10061061105627).

Almost surely, 2^{20122122211253} is an apocalyptic number.

It is an amenable number.

20122122211253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122122211253 is an equidigital number, since it uses as much as digits as its factorization.

20122122211253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 20122122211253 its reverse (35211222122102), we get a palindrome (55333344333355).

The spelling of 20122122211253 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred eleven thousand, two hundred fifty-three".