154120112212 has 48 divisors (see below), whose sum is σ = 317608905600. Its totient is φ = 64698085760.

The previous prime is 154120112191. The next prime is 154120112227. The reversal of 154120112212 is 212211021451.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2596387 + ... + 2655082.

It is an arithmetic number, because the mean of its divisors is an integer number (6616852200).

Almost surely, 2^154120112212 is an apocalyptic number.

It is an amenable number.

154120112212 is an abundant number, since it is smaller than the sum of its proper divisors (163488793388).

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

154120112212 is a wasteful number, since it uses less digits than its factorization.

154120112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251536 (or 5251534 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 154120112212 its reverse (212211021451), we get a palindrome (366331133663).

The spelling of 154120112212 in words is "one hundred fifty-four billion, one hundred twenty million, one hundred twelve thousand, two hundred twelve".