29899192212 has 144 divisors (see below), whose sum is σ = 81620557200. Its totient is φ = 9208442880.

The previous prime is 29899192199. The next prime is 29899192261. The reversal of 29899192212 is 21229199892.

It can be written as a sum of positive squares in 8 ways, for example, as 2358462096 + 27540730116 = 48564^2 + 165954^2 .

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 47 ways as a sum of consecutive naturals, for example, 2349964 + ... + 2362652.

It is an arithmetic number, because the mean of its divisors is an integer number (566809425).

Almost surely, 2^29899192212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29899192212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40810278600).

29899192212 is an abundant number, since it is smaller than the sum of its proper divisors (51721364988).

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

29899192212 is a wasteful number, since it uses less digits than its factorization.

29899192212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12826 (or 12821 counting only the distinct ones).

The product of its digits is 839808, while the sum is 54.

It can be divided in two parts, 29899 and 192212, that added together give a triangular number (222111 = T₆₆₆).

The spelling of 29899192212 in words is "twenty-nine billion, eight hundred ninety-nine million, one hundred ninety-two thousand, two hundred twelve".