2121011942 has 12 divisors (see below), whose sum is σ = 3700949580. Its totient is φ = 909005076.

The previous prime is 2121011927. The next prime is 2121012031. The reversal of 2121011942 is 2491101212.

It is a super-2 number, since 2×2121011942² = 8997383316213222728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10821392 + ... + 10821587.

It is an arithmetic number, because the mean of its divisors is an integer number (308412465).

Almost surely, 2^2121011942 is an apocalyptic number.

2121011942 is a deficient number, since it is larger than the sum of its proper divisors (1579937638).

2121011942 is a wasteful number, since it uses less digits than its factorization.

2121011942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21642995 (or 21642988 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2121011942 is about 46054.4454097539. The cubic root of 2121011942 is about 1284.8360234270.

The spelling of 2121011942 in words is "two billion, one hundred twenty-one million, eleven thousand, nine hundred forty-two".