29131222 has 8 divisors (see below), whose sum is σ = 43986672. Its totient is φ = 14469000.

The previous prime is 29131187. The next prime is 29131243. The reversal of 29131222 is 22213192.

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

It is a junction number, because it is equal to n+sod(n) for n = 29131193 and 29131202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47929 + ... + 48532.

It is an arithmetic number, because the mean of its divisors is an integer number (5498334).

Almost surely, 2^29131222 is an apocalyptic number.

29131222 is a deficient number, since it is larger than the sum of its proper divisors (14855450).

29131222 is a wasteful number, since it uses less digits than its factorization.

29131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96614.

The product of its digits is 432, while the sum is 22.

The square root of 29131222 is about 5397.3347126151. The cubic root of 29131222 is about 307.6943825725.

It can be divided in two parts, 291 and 31222, that added together give a palindrome (31513).

The spelling of 29131222 in words is "twenty-nine million, one hundred thirty-one thousand, two hundred twenty-two".