121401292 has 12 divisors (see below), whose sum is σ = 218194480. Its totient is φ = 59060016.

The previous prime is 121401229. The next prime is 121401299. The reversal of 121401292 is 292104121.

It is not an unprimeable number, because it can be changed into a prime (121401299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409992 + ... + 410287.

Almost surely, 2^121401292 is an apocalyptic number.

It is an amenable number.

121401292 is a deficient number, since it is larger than the sum of its proper divisors (96793188).

121401292 is a wasteful number, since it uses less digits than its factorization.

121401292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820320 (or 820318 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 121401292 is about 11018.2254469583. The cubic root of 121401292 is about 495.1549248087.

The spelling of 121401292 in words is "one hundred twenty-one million, four hundred one thousand, two hundred ninety-two".