121000442 has 16 divisors (see below), whose sum is σ = 183496320. Its totient is φ = 59838912.

The previous prime is 121000433. The next prime is 121000457. The reversal of 121000442 is 244000121.

It is a super-2 number, since 2×121000442² = 29282213928390728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77138 + ... + 78690.

It is an arithmetic number, because the mean of its divisors is an integer number (11468520).

Almost surely, 2^121000442 is an apocalyptic number.

121000442 is a deficient number, since it is larger than the sum of its proper divisors (62495878).

121000442 is a wasteful number, since it uses less digits than its factorization.

121000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 121000442 is about 11000.0200908907. The cubic root of 121000442 is about 494.6093465750.

Adding to 121000442 its reverse (244000121), we get a palindrome (365000563).

The spelling of 121000442 in words is "one hundred twenty-one million, four hundred forty-two", and thus it is an aban number.