1232122212291 has 16 divisors (see below), whose sum is σ = 1769510483840. Its totient is φ = 760085182080.

The previous prime is 1232122212271. The next prime is 1232122212337. The reversal of 1232122212291 is 1922122212321.

It is not a de Polignac number, because 1232122212291 - 2¹⁰ = 1232122211267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232122212271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251348470 + ... + 251353371.

It is an arithmetic number, because the mean of its divisors is an integer number (110594405240).

Almost surely, 2^{1232122212291} is an apocalyptic number.

1232122212291 is a deficient number, since it is larger than the sum of its proper divisors (537388271549).

1232122212291 is a wasteful number, since it uses less digits than its factorization.

1232122212291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502701906.

The product of its digits is 3456, while the sum is 30.

Adding to 1232122212291 its sum of digits (30), we get a palindrome (1232122212321).

The spelling of 1232122212291 in words is "one trillion, two hundred thirty-two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred ninety-one".