29838222091 has 4 divisors (see below), whose sum is σ = 29992824472. Its totient is φ = 29683619712.

The previous prime is 29838222067. The next prime is 29838222097. The reversal of 29838222091 is 19022283892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29838222091 - 2⁵ = 29838222059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29838222097) 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, 77300901 + ... + 77301286.

It is an arithmetic number, because the mean of its divisors is an integer number (7498206118).

Almost surely, 2^29838222091 is an apocalyptic number.

29838222091 is a deficient number, since it is larger than the sum of its proper divisors (154602381).

29838222091 is a wasteful number, since it uses less digits than its factorization.

29838222091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154602380.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 29838222091 in words is "twenty-nine billion, eight hundred thirty-eight million, two hundred twenty-two thousand, ninety-one".