1212101331232 has 48 divisors (see below), whose sum is σ = 2603875552992. Its totient is φ = 550825528320.

The previous prime is 1212101331211. The next prime is 1212101331289. The reversal of 1212101331232 is 2321331012121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101163 + ... + 1907029.

It is an arithmetic number, because the mean of its divisors is an integer number (54247407354).

Almost surely, 2^{1212101331232} is an apocalyptic number.

It is an amenable number.

1212101331232 is an abundant number, since it is smaller than the sum of its proper divisors (1391774221760).

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

1212101331232 is a wasteful number, since it uses less digits than its factorization.

1212101331232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810161 (or 810153 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1212101331232 its reverse (2321331012121), we get a palindrome (3533432343353).

The spelling of 1212101331232 in words is "one trillion, two hundred twelve billion, one hundred one million, three hundred thirty-one thousand, two hundred thirty-two".