1226837121 has 16 divisors (see below), whose sum is σ = 1697415168. Its totient is φ = 787352400.

The previous prime is 1226837111. The next prime is 1226837123. The reversal of 1226837121 is 1217386221.

It is not a de Polignac number, because 1226837121 - 2⁷ = 1226836993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226837123) 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, 16771 + ... + 52296.

It is an arithmetic number, because the mean of its divisors is an integer number (106088448).

Almost surely, 2^1226837121 is an apocalyptic number.

It is an amenable number.

1226837121 is a deficient number, since it is larger than the sum of its proper divisors (470578047).

1226837121 is a wasteful number, since it uses less digits than its factorization.

1226837121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69292.

The product of its digits is 8064, while the sum is 33.

The square root of 1226837121 is about 35026.2347533959. The cubic root of 1226837121 is about 1070.5220967944.

The spelling of 1226837121 in words is "one billion, two hundred twenty-six million, eight hundred thirty-seven thousand, one hundred twenty-one".