29221388898 has 32 divisors (see below), whose sum is σ = 62945727936. Its totient is φ = 8990146368.

The previous prime is 29221388897. The next prime is 29221388939. The reversal of 29221388898 is 89888312292.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (29221388897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 894765 + ... + 926847.

It is an arithmetic number, because the mean of its divisors is an integer number (1967053998).

Almost surely, 2^29221388898 is an apocalyptic number.

29221388898 is an abundant number, since it is smaller than the sum of its proper divisors (33724339038).

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

29221388898 is a wasteful number, since it uses less digits than its factorization.

29221388898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43778.

The product of its digits is 7962624, while the sum is 60.

The spelling of 29221388898 in words is "twenty-nine billion, two hundred twenty-one million, three hundred eighty-eight thousand, eight hundred ninety-eight".