22121415907 has 2 divisors, whose sum is σ = 22121415908. Its totient is φ = 22121415906.

The previous prime is 22121415887. The next prime is 22121415941. The reversal of 22121415907 is 70951412122.

It is an a-pointer prime, because the next prime (22121415941) can be obtained adding 22121415907 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121415907 is a prime.

It is not a weakly prime, because it can be changed into another prime (22121415977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060707953 + 11060707954.

It is an arithmetic number, because the mean of its divisors is an integer number (11060707954).

Almost surely, 2^22121415907 is an apocalyptic number.

22121415907 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121415907 is an equidigital number, since it uses as much as digits as its factorization.

22121415907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 22121415907 in words is "twenty-two billion, one hundred twenty-one million, four hundred fifteen thousand, nine hundred seven".