29128309122 has 16 divisors (see below), whose sum is σ = 63552674592. Its totient is φ = 8826760320.

The previous prime is 29128309097. The next prime is 29128309141. The reversal of 29128309122 is 22190382192.

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, 220668943 + ... + 220669074.

It is an arithmetic number, because the mean of its divisors is an integer number (3972042162).

Almost surely, 2^29128309122 is an apocalyptic number.

29128309122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

29128309122 is an abundant number, since it is smaller than the sum of its proper divisors (34424365470).

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

29128309122 is a wasteful number, since it uses less digits than its factorization.

29128309122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441338033.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 29128309122 in words is "twenty-nine billion, one hundred twenty-eight million, three hundred nine thousand, one hundred twenty-two".