11401222120 has 32 divisors (see below), whose sum is σ = 25662047400. Its totient is φ = 4558835968.

The previous prime is 11401222109. The next prime is 11401222163. The reversal of 11401222120 is 2122210411.

It can be written as a sum of positive squares in 4 ways, for example, as 8497521124 + 2903700996 = 92182^2 + 53886^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11401222094 and 11401222103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63246 + ... + 163714.

Almost surely, 2^11401222120 is an apocalyptic number.

11401222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11401222120 is an abundant number, since it is smaller than the sum of its proper divisors (14260825280).

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

11401222120 is a wasteful number, since it uses less digits than its factorization.

11401222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103317 (or 103313 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11401222120 its reverse (2122210411), we get a palindrome (13523432531).

The spelling of 11401222120 in words is "eleven billion, four hundred one million, two hundred twenty-two thousand, one hundred twenty".