47131222 has 16 divisors (see below), whose sum is σ = 74761344. Its totient is φ = 22248000.

The previous prime is 47131219. The next prime is 47131247. The reversal of 47131222 is 22213174.

It is a junction number, because it is equal to n+sod(n) for n = 47131193 and 47131202.

It is a congruent number.

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, 6729 + ... + 11812.

It is an arithmetic number, because the mean of its divisors is an integer number (4672584).

Almost surely, 2^47131222 is an apocalyptic number.

47131222 is a deficient number, since it is larger than the sum of its proper divisors (27630122).

47131222 is a wasteful number, since it uses less digits than its factorization.

47131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18615.

The product of its digits is 672, while the sum is 22.

The square root of 47131222 is about 6865.2182776660. The cubic root of 47131222 is about 361.2181522272.

Adding to 47131222 its reverse (22213174), we get a palindrome (69344396).

The spelling of 47131222 in words is "forty-seven million, one hundred thirty-one thousand, two hundred twenty-two".