29900121121 has 8 divisors (see below), whose sum is σ = 32204894400. Its totient is φ = 27596028432.

The previous prime is 29900121091. The next prime is 29900121131. The reversal of 29900121121 is 12112100992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29900121121 - 2¹³ = 29900112929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29900121121.

It is not an unprimeable number, because it can be changed into a prime (29900121131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77005 + ... + 256378.

It is an arithmetic number, because the mean of its divisors is an integer number (4025611800).

Almost surely, 2^29900121121 is an apocalyptic number.

It is an amenable number.

29900121121 is a deficient number, since it is larger than the sum of its proper divisors (2304773279).

29900121121 is a wasteful number, since it uses less digits than its factorization.

29900121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340295.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 29900121121 in words is "twenty-nine billion, nine hundred million, one hundred twenty-one thousand, one hundred twenty-one".