121233133312 has 36 divisors (see below), whose sum is σ = 242110050336. Its totient is φ = 60587171840.

The previous prime is 121233133303. The next prime is 121233133321. The reversal of 121233133312 is 213331332121.

It is an interprime number because it is at equal distance from previous prime (121233133303) and next prime (121233133321).

It is a super-2 number, since 2×121233133312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 418953 + ... + 646519.

It is an arithmetic number, because the mean of its divisors is an integer number (6725279176).

Almost surely, 2^121233133312 is an apocalyptic number.

It is an amenable number.

121233133312 is a deficient number, since it is larger than the sum of its proper divisors (120876917024).

121233133312 is an equidigital number, since it uses as much as digits as its factorization.

121233133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229664 (or 229650 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 121233133312 its reverse (213331332121), we get a palindrome (334564465433).

The spelling of 121233133312 in words is "one hundred twenty-one billion, two hundred thirty-three million, one hundred thirty-three thousand, three hundred twelve".