122222004012 has 18 divisors (see below), whose sum is σ = 308950065788. Its totient is φ = 40740667992.

The previous prime is 122222003963. The next prime is 122222004029. The reversal of 122222004012 is 210400222221.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×122222004012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1697527798 + ... + 1697527869.

Almost surely, 2^122222004012 is an apocalyptic number.

122222004012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122222004012 is an abundant number, since it is smaller than the sum of its proper divisors (186728061776).

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

122222004012 is a wasteful number, since it uses less digits than its factorization.

122222004012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395055677 (or 3395055672 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122222004012 its reverse (210400222221), we get a palindrome (332622226233).

The spelling of 122222004012 in words is "one hundred twenty-two billion, two hundred twenty-two million, four thousand, twelve".