122220313111212 has 48 divisors (see below), whose sum is σ = 291649926489600. Its totient is φ = 39826145361600.

The previous prime is 122220313111147. The next prime is 122220313111217. The reversal of 122220313111212 is 212111313022221.

It is a super-2 number, since 2×122220313111212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122220313111217) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 638143762 + ... + 638335257.

It is an arithmetic number, because the mean of its divisors is an integer number (6076040135200).

Almost surely, 2^{122220313111212} is an apocalyptic number.

122220313111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122220313111212 is an abundant number, since it is smaller than the sum of its proper divisors (169429613378388).

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

122220313111212 is a wasteful number, since it uses less digits than its factorization.

122220313111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276479206 (or 1276479204 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 122220313111212 its reverse (212111313022221), we get a palindrome (334331626133433).

The spelling of 122220313111212 in words is "one hundred twenty-two trillion, two hundred twenty billion, three hundred thirteen million, one hundred eleven thousand, two hundred twelve".