121121229 has 8 divisors (see below), whose sum is σ = 161566272. Its totient is φ = 80711840.

The previous prime is 121121227. The next prime is 121121233. The reversal of 121121229 is 922121121.

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 121121229 - 2¹ = 121121227 is a prime.

It is a super-2 number, since 2×121121229² = 29340704228940882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121227) 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, 409 + ... + 15569.

It is an arithmetic number, because the mean of its divisors is an integer number (20195784).

Almost surely, 2^121121229 is an apocalyptic number.

It is an amenable number.

121121229 is a deficient number, since it is larger than the sum of its proper divisors (40445043).

121121229 is a wasteful number, since it uses less digits than its factorization.

121121229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17827.

The product of its digits is 144, while the sum is 21.

The square root of 121121229 is about 11005.5090295724. The cubic root of 121121229 is about 494.7738707982.

The spelling of 121121229 in words is "one hundred twenty-one million, one hundred twenty-one thousand, two hundred twenty-nine".