12121029393 has 64 divisors (see below), whose sum is σ = 19247300352. Its totient is φ = 6700769280.

The previous prime is 12121029337. The next prime is 12121029397. The reversal of 12121029393 is 39392012121.

It is not a de Polignac number, because 12121029393 - 2¹³ = 12121021201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12121029397) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6080805 + ... + 6082797.

It is an arithmetic number, because the mean of its divisors is an integer number (300739068).

Almost surely, 2^12121029393 is an apocalyptic number.

It is an amenable number.

12121029393 is a deficient number, since it is larger than the sum of its proper divisors (7126270959).

12121029393 is a wasteful number, since it uses less digits than its factorization.

12121029393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 12121029393 in words is "twelve billion, one hundred twenty-one million, twenty-nine thousand, three hundred ninety-three".