11122721234 has 8 divisors (see below), whose sum is σ = 16689509760. Its totient is φ = 5559551316.

The previous prime is 11122721231. The next prime is 11122721237. The reversal of 11122721234 is 43212722111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11122721231) and next prime (11122721237).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11122721231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896954 + ... + 909269.

It is an arithmetic number, because the mean of its divisors is an integer number (2086188720).

Almost surely, 2^11122721234 is an apocalyptic number.

11122721234 is a deficient number, since it is larger than the sum of its proper divisors (5566788526).

11122721234 is a wasteful number, since it uses less digits than its factorization.

11122721234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809304.

The product of its digits is 1344, while the sum is 26.

The spelling of 11122721234 in words is "eleven billion, one hundred twenty-two million, seven hundred twenty-one thousand, two hundred thirty-four".