122247813690 has 48 divisors (see below), whose sum is σ = 318621537000. Its totient is φ = 32519702016.

The previous prime is 122247813689. The next prime is 122247813731. The reversal of 122247813690 is 96318742221.

It can be written as a sum of positive squares in 4 ways, for example, as 120443008401 + 1804805289 = 347049^2 + 42483^2 .

It is a super-2 number, since 2×122247813690² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1623715 + ... + 1697334.

Almost surely, 2^122247813690 is an apocalyptic number.

122247813690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122247813690 is an abundant number, since it is smaller than the sum of its proper divisors (196373723310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122247813690 is a wasteful number, since it uses less digits than its factorization.

122247813690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321471 (or 3321468 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 122247813690 in words is "one hundred twenty-two billion, two hundred forty-seven million, eight hundred thirteen thousand, six hundred ninety".