69120121 has 8 divisors (see below), whose sum is σ = 79137344. Its totient is φ = 59138640.

The previous prime is 69120101. The next prime is 69120143. The reversal of 69120121 is 12102196.

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 69120121 - 2⁵ = 69120089 is a prime.

It is a super-2 number, since 2×69120121² = 9555182254109282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69120092 and 69120101.

It is not an unprimeable number, because it can be changed into a prime (69120101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4650 + ... + 12643.

It is an arithmetic number, because the mean of its divisors is an integer number (9892168).

Almost surely, 2^69120121 is an apocalyptic number.

It is an amenable number.

69120121 is a deficient number, since it is larger than the sum of its proper divisors (10017223).

69120121 is a wasteful number, since it uses less digits than its factorization.

69120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17871.

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

The square root of 69120121 is about 8313.8511533464. The cubic root of 69120121 is about 410.3944666781.

The spelling of 69120121 in words is "sixty-nine million, one hundred twenty thousand, one hundred twenty-one".