20120112120999 has 8 divisors (see below), whose sum is σ = 29265617630592. Its totient is φ = 12194007346040.

The previous prime is 20120112120991. The next prime is 20120112121027. The reversal of 20120112120999 is 99902121102102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20120112120999 - 2³ = 20120112120991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120112120991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304850183619 + ... + 304850183684.

It is an arithmetic number, because the mean of its divisors is an integer number (3658202203824).

Almost surely, 2^{20120112120999} is an apocalyptic number.

20120112120999 is a deficient number, since it is larger than the sum of its proper divisors (9145505509593).

20120112120999 is a wasteful number, since it uses less digits than its factorization.

20120112120999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609700367317.

The product of its (nonzero) digits is 11664, while the sum is 39.

The spelling of 20120112120999 in words is "twenty trillion, one hundred twenty billion, one hundred twelve million, one hundred twenty thousand, nine hundred ninety-nine".