1210423220112 has 40 divisors (see below), whose sum is σ = 3234751712640. Its totient is φ = 389561495680.

The previous prime is 1210423220087. The next prime is 1210423220131. The reversal of 1210423220112 is 2110223240121.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 434777064 + ... + 434779847.

It is an arithmetic number, because the mean of its divisors is an integer number (80868792816).

Almost surely, 2^{1210423220112} is an apocalyptic number.

1210423220112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210423220112 is an abundant number, since it is smaller than the sum of its proper divisors (2024328492528).

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

1210423220112 is a wasteful number, since it uses less digits than its factorization.

1210423220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869556951 (or 869556945 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1210423220112 its reverse (2110223240121), we get a palindrome (3320646460233).

The spelling of 1210423220112 in words is "one trillion, two hundred ten billion, four hundred twenty-three million, two hundred twenty thousand, one hundred twelve".