1232122551 has 12 divisors (see below), whose sum is σ = 1805755896. Its totient is φ = 746740720.

The previous prime is 1232122523. The next prime is 1232122553. The reversal of 1232122551 is 1552212321.

1232122551 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1232122551 - 2⁵ = 1232122519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232122553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1696776 + ... + 1697501.

It is an arithmetic number, because the mean of its divisors is an integer number (150479658).

Almost surely, 2^1232122551 is an apocalyptic number.

1232122551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1232122551 is a deficient number, since it is larger than the sum of its proper divisors (573633345).

1232122551 is a wasteful number, since it uses less digits than its factorization.

1232122551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394302 (or 3394291 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 1232122551 is about 35101.6032539826. The cubic root of 1232122551 is about 1072.0572268287.

Adding to 1232122551 its reverse (1552212321), we get a palindrome (2784334872).

The spelling of 1232122551 in words is "one billion, two hundred thirty-two million, one hundred twenty-two thousand, five hundred fifty-one".