20212196926697 has 2 divisors, whose sum is σ = 20212196926698. Its totient is φ = 20212196926696.

The previous prime is 20212196926633. The next prime is 20212196926739. The reversal of 20212196926697 is 79662969121202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13148195089936 + 7064001836761 = 3626044^2 + 2657819^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212196926697 - 2⁶ = 20212196926633 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212196923697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106098463348 + 10106098463349.

It is an arithmetic number, because the mean of its divisors is an integer number (10106098463349).

Almost surely, 2^{20212196926697} is an apocalyptic number.

It is an amenable number.

20212196926697 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212196926697 is an equidigital number, since it uses as much as digits as its factorization.

20212196926697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 20212196926697 in words is "twenty trillion, two hundred twelve billion, one hundred ninety-six million, nine hundred twenty-six thousand, six hundred ninety-seven".