1212023011332 has 48 divisors (see below), whose sum is σ = 3237011068032. Its totient is φ = 345761963520.

The previous prime is 1212023011291. The next prime is 1212023011343. The reversal of 1212023011332 is 2331103202121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1212023011299 and 1212023011308.

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, 10993269 + ... + 11102972.

It is an arithmetic number, because the mean of its divisors is an integer number (67437730584).

Almost surely, 2^{1212023011332} is an apocalyptic number.

1212023011332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212023011332 is an abundant number, since it is smaller than the sum of its proper divisors (2024988056700).

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

1212023011332 is a wasteful number, since it uses less digits than its factorization.

1212023011332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22096908 (or 22096906 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1212023011332 its reverse (2331103202121), we get a palindrome (3543126213453).

The spelling of 1212023011332 in words is "one trillion, two hundred twelve billion, twenty-three million, eleven thousand, three hundred thirty-two".