29910220123121 has 8 divisors (see below), whose sum is σ = 32211060147840. Its totient is φ = 27609387792912.

The previous prime is 29910220123111. The next prime is 29910220123153. The reversal of 29910220123121 is 12132102201992.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29910220123121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29910220123111) 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, 8074520 + ... + 11181158.

It is an arithmetic number, because the mean of its divisors is an integer number (4026382518480).

Almost surely, 2^{29910220123121} is an apocalyptic number.

It is an amenable number.

29910220123121 is a deficient number, since it is larger than the sum of its proper divisors (2300840024719).

29910220123121 is a wasteful number, since it uses less digits than its factorization.

29910220123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847255.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 29910220123121 in words is "twenty-nine trillion, nine hundred ten billion, two hundred twenty million, one hundred twenty-three thousand, one hundred twenty-one".