133121221112112 has 20 divisors (see below), whose sum is σ = 343896487873080. Its totient is φ = 44373740370688.

The previous prime is 133121221112081. The next prime is 133121221112149. The reversal of 133121221112112 is 211211122121331.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

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, 1386679386537 + ... + 1386679386632.

It is an arithmetic number, because the mean of its divisors is an integer number (17194824393654).

Almost surely, 2^{133121221112112} is an apocalyptic number.

133121221112112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133121221112112 is an abundant number, since it is smaller than the sum of its proper divisors (210775266760968).

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

133121221112112 is a wasteful number, since it uses less digits than its factorization.

133121221112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773358773180 (or 2773358773174 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

Adding to 133121221112112 its reverse (211211122121331), we get a palindrome (344332343233443).

The spelling of 133121221112112 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twelve".