29121245912 has 32 divisors (see below), whose sum is σ = 59786035200. Its totient is φ = 13188074400.

The previous prime is 29121245891. The next prime is 29121245927. The reversal of 29121245912 is 21954212192.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586712 + ... + 634407.

It is an arithmetic number, because the mean of its divisors is an integer number (1868313600).

Almost surely, 2^29121245912 is an apocalyptic number.

29121245912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

29121245912 is an abundant number, since it is smaller than the sum of its proper divisors (30664789288).

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

29121245912 is a wasteful number, since it uses less digits than its factorization.

29121245912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221407 (or 1221403 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The spelling of 29121245912 in words is "twenty-nine billion, one hundred twenty-one million, two hundred forty-five thousand, nine hundred twelve".