11222142 has 32 divisors (see below), whose sum is σ = 23911200. Its totient is φ = 3499008.

The previous prime is 11222129. The next prime is 11222147. The reversal of 11222142 is 24122211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222147) 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, 27234 + ... + 27642.

It is an arithmetic number, because the mean of its divisors is an integer number (747225).

Almost surely, 2^11222142 is an apocalyptic number.

11222142 is an abundant number, since it is smaller than the sum of its proper divisors (12689058).

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

11222142 is a wasteful number, since it uses less digits than its factorization.

11222142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its digits is 64, while the sum is 15.

The square root of 11222142 is about 3349.9465667380. The cubic root of 11222142 is about 223.8851319003.

Adding to 11222142 its reverse (24122211), we get a palindrome (35344353).

The spelling of 11222142 in words is "eleven million, two hundred twenty-two thousand, one hundred forty-two".