12121069 has 8 divisors (see below), whose sum is σ = 13314240. Its totient is φ = 10983456.

The previous prime is 12121063. The next prime is 12121079. The reversal of 12121069 is 96012121.

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 12121069 - 2³ = 12121061 is a prime.

It is a super-2 number, since 2×12121069² = 293840627405522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121061) 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, 13432 + ... + 14305.

It is an arithmetic number, because the mean of its divisors is an integer number (1664280).

Almost surely, 2^12121069 is an apocalyptic number.

12121069 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12121069 is a deficient number, since it is larger than the sum of its proper divisors (1193171).

12121069 is a wasteful number, since it uses less digits than its factorization.

12121069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27779.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 12121069 is about 3481.5325648341. The cubic root of 12121069 is about 229.7102147527.

The spelling of 12121069 in words is "twelve million, one hundred twenty-one thousand, sixty-nine".