22121102012293 has 2 divisors, whose sum is σ = 22121102012294. Its totient is φ = 22121102012292.

The previous prime is 22121102012291. The next prime is 22121102012327. The reversal of 22121102012293 is 39221020112122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21847930627329 + 273171384964 = 4674177^2 + 522658^2 .

It is a cyclic number.

It is not a de Polignac number, because 22121102012293 - 2¹ = 22121102012291 is a prime.

Together with 22121102012291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121102012291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060551006146 + 11060551006147.

It is an arithmetic number, because the mean of its divisors is an integer number (11060551006147).

Almost surely, 2^{22121102012293} is an apocalyptic number.

It is an amenable number.

22121102012293 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121102012293 is an equidigital number, since it uses as much as digits as its factorization.

22121102012293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 22121102012293 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, twelve thousand, two hundred ninety-three".