121516042 has 8 divisors (see below), whose sum is σ = 183481632. Its totient is φ = 60355500.

The previous prime is 121516037. The next prime is 121516049. The reversal of 121516042 is 240615121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121516042² = 29532296926691528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121516049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200884 + ... + 201487.

It is an arithmetic number, because the mean of its divisors is an integer number (22935204).

Almost surely, 2^121516042 is an apocalyptic number.

121516042 is a deficient number, since it is larger than the sum of its proper divisors (61965590).

121516042 is a wasteful number, since it uses less digits than its factorization.

121516042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402524.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 121516042 is about 11023.4314984038. The cubic root of 121516042 is about 495.3108845300.

The spelling of 121516042 in words is "one hundred twenty-one million, five hundred sixteen thousand, forty-two".