1220323022112 has 24 divisors (see below), whose sum is σ = 3203347933296. Its totient is φ = 406774340672.

The previous prime is 1220323022089. The next prime is 1220323022141. The reversal of 1220323022112 is 2112203230221.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6355848978 + ... + 6355849169.

It is an arithmetic number, because the mean of its divisors is an integer number (133472830554).

Almost surely, 2^{1220323022112} is an apocalyptic number.

1220323022112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220323022112 is an abundant number, since it is smaller than the sum of its proper divisors (1983024911184).

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

1220323022112 is a wasteful number, since it uses less digits than its factorization.

1220323022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12711698160 (or 12711698152 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1220323022112 its reverse (2112203230221), we get a palindrome (3332526252333).

The spelling of 1220323022112 in words is "one trillion, two hundred twenty billion, three hundred twenty-three million, twenty-two thousand, one hundred twelve".