29121822093 has 16 divisors (see below), whose sum is σ = 47789657216. Its totient is φ = 15360960960.

The previous prime is 29121822077. The next prime is 29121822151. The reversal of 29121822093 is 39022812192.

It is not a de Polignac number, because 29121822093 - 2⁴ = 29121822077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29121822043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53336398 + ... + 53336943.

It is an arithmetic number, because the mean of its divisors is an integer number (2986853576).

Almost surely, 2^29121822093 is an apocalyptic number.

It is an amenable number.

29121822093 is a deficient number, since it is larger than the sum of its proper divisors (18667835123).

29121822093 is a wasteful number, since it uses less digits than its factorization.

29121822093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106673364.

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

Subtracting 29121822093 from its reverse (39022812192), we obtain a palindrome (9900990099).

It can be divided in two parts, 2912 and 1822093, that added together give a triangular number (1825005 = T₁₉₁₀).

The spelling of 29121822093 in words is "twenty-nine billion, one hundred twenty-one million, eight hundred twenty-two thousand, ninety-three".