1131372222 has 8 divisors (see below), whose sum is σ = 2262744456. Its totient is φ = 377124072.

The previous prime is 1131372173. The next prime is 1131372223. The reversal of 1131372222 is 2222731311.

It is a happy number.

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

1131372222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1131372192 and 1131372201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131372223) 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, 94281013 + ... + 94281024.

It is an arithmetic number, because the mean of its divisors is an integer number (282843057).

Almost surely, 2^1131372222 is an apocalyptic number.

1131372222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1131372222 is a wasteful number, since it uses less digits than its factorization.

1131372222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188562042.

The product of its digits is 1008, while the sum is 24.

The square root of 1131372222 is about 33635.8770065536. The cubic root of 1131372222 is about 1042.0018831560.

The spelling of 1131372222 in words is "one billion, one hundred thirty-one million, three hundred seventy-two thousand, two hundred twenty-two".