29220012 has 18 divisors (see below), whose sum is σ = 73861788. Its totient is φ = 9739992.

The previous prime is 29220001. The next prime is 29220029. The reversal of 29220012 is 21002292.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 405798 + ... + 405869.

Almost surely, 2^29220012 is an apocalyptic number.

It is an amenable number.

29220012 is an abundant number, since it is smaller than the sum of its proper divisors (44641776).

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

29220012 is a wasteful number, since it uses less digits than its factorization.

29220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811677 (or 811672 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 29220012 is about 5405.5538106655. The cubic root of 29220012 is about 308.0066760795.

The spelling of 29220012 in words is "twenty-nine million, two hundred twenty thousand, twelve".