121311123123222 has 24 divisors (see below), whose sum is σ = 268433123508576. Its totient is φ = 39576678465456.

The previous prime is 121311123123133. The next prime is 121311123123257. The reversal of 121311123123222 is 222321321113121.

121311123123222 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 11 + 12 + 312 + 322 + 2 = 666.

It is a super-2 number, since 2×121311123123222² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71696880433 + ... + 71696882124.

It is an arithmetic number, because the mean of its divisors is an integer number (11184713479524).

Almost surely, 2^{121311123123222} is an apocalyptic number.

121311123123222 is an abundant number, since it is smaller than the sum of its proper divisors (147122000385354).

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

121311123123222 is a wasteful number, since it uses less digits than its factorization.

121311123123222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143393762612 (or 143393762609 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 121311123123222 its reverse (222321321113121), we get a palindrome (343632444236343).

The spelling of 121311123123222 in words is "one hundred twenty-one trillion, three hundred eleven billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred twenty-two".