22119146478397 has 2 divisors, whose sum is σ = 22119146478398. Its totient is φ = 22119146478396.

The previous prime is 22119146478313. The next prime is 22119146478431. The reversal of 22119146478397 is 79387464191122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18802162133316 + 3316984345081 = 4336146^2 + 1821259^2 .

It is a cyclic number.

It is not a de Polignac number, because 22119146478397 - 2¹⁵ = 22119146445629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22119146478697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11059573239198 + 11059573239199.

It is an arithmetic number, because the mean of its divisors is an integer number (11059573239199).

Almost surely, 2^{22119146478397} is an apocalyptic number.

It is an amenable number.

22119146478397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22119146478397 is an equidigital number, since it uses as much as digits as its factorization.

22119146478397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 64.

The spelling of 22119146478397 in words is "twenty-two trillion, one hundred nineteen billion, one hundred forty-six million, four hundred seventy-eight thousand, three hundred ninety-seven".