109221763957 has 2 divisors, whose sum is σ = 109221763958. Its totient is φ = 109221763956.

The previous prime is 109221763949. The next prime is 109221764009. The reversal of 109221763957 is 759367122901.

It is an a-pointer prime, because the next prime (109221764009) can be obtained adding 109221763957 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104071405201 + 5150358756 = 322601^2 + 71766^2 .

It is a cyclic number.

It is not a de Polignac number, because 109221763957 - 2³ = 109221763949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109221763907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54610881978 + 54610881979.

It is an arithmetic number, because the mean of its divisors is an integer number (54610881979).

Almost surely, 2^109221763957 is an apocalyptic number.

It is an amenable number.

109221763957 is a deficient number, since it is larger than the sum of its proper divisors (1).

109221763957 is an equidigital number, since it uses as much as digits as its factorization.

109221763957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 109221763957 in words is "one hundred nine billion, two hundred twenty-one million, seven hundred sixty-three thousand, nine hundred fifty-seven".