121014642 has 64 divisors (see below), whose sum is σ = 290847744. Its totient is φ = 32840640.

The previous prime is 121014637. The next prime is 121014659. The reversal of 121014642 is 246410121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65917 + ... + 67727.

It is an arithmetic number, because the mean of its divisors is an integer number (4544496).

Almost surely, 2^121014642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121014642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145423872).

121014642 is an abundant number, since it is smaller than the sum of its proper divisors (169833102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121014642 is a wasteful number, since it uses less digits than its factorization.

121014642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 121014642 is about 11000.6655253216. The cubic root of 121014642 is about 494.6286941021.

Adding to 121014642 its reverse (246410121), we get a palindrome (367424763).

The spelling of 121014642 in words is "one hundred twenty-one million, fourteen thousand, six hundred forty-two".