12222357890 has 16 divisors (see below), whose sum is σ = 22536836280. Its totient is φ = 4769700480.

The previous prime is 12222357871. The next prime is 12222357899. The reversal of 12222357890 is 9875322221.

It can be written as a sum of positive squares in 4 ways, for example, as 2472177841 + 9750180049 = 49721^2 + 98743^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (12222357899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14904905 + ... + 14905724.

Almost surely, 2^12222357890 is an apocalyptic number.

12222357890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222357890 is a deficient number, since it is larger than the sum of its proper divisors (10314478390).

12222357890 is a wasteful number, since it uses less digits than its factorization.

12222357890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29810677.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 12222357890 in words is "twelve billion, two hundred twenty-two million, three hundred fifty-seven thousand, eight hundred ninety".