1010121994 has 16 divisors (see below), whose sum is σ = 1735405056. Its totient is φ = 431967600.

The previous prime is 1010121967. The next prime is 1010122033. The reversal of 1010121994 is 4991210101.

1010121994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 71802 + ... + 84709.

It is an arithmetic number, because the mean of its divisors is an integer number (108462816).

Almost surely, 2^1010121994 is an apocalyptic number.

1010121994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1010121994 is a deficient number, since it is larger than the sum of its proper divisors (725283062).

1010121994 is a wasteful number, since it uses less digits than its factorization.

1010121994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156981.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1010121994 is about 31782.4164279559. The cubic root of 1010121994 is about 1003.3626777239.

The spelling of 1010121994 in words is "one billion, ten million, one hundred twenty-one thousand, nine hundred ninety-four".