2120112223021 has 8 divisors (see below), whose sum is σ = 2293255921824. Its totient is φ = 1948405401840.

The previous prime is 2120112222989. The next prime is 2120112223027. The reversal of 2120112223021 is 1203222110212.

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 2120112223021 - 2⁵ = 2120112222989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120112223021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120112223027) 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, 359216335 + ... + 359222236.

It is an arithmetic number, because the mean of its divisors is an integer number (286656990228).

Almost surely, 2^{2120112223021} is an apocalyptic number.

It is an amenable number.

2120112223021 is a deficient number, since it is larger than the sum of its proper divisors (173143698803).

2120112223021 is a wasteful number, since it uses less digits than its factorization.

2120112223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718438811.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2120112223021 its reverse (1203222110212), we get a palindrome (3323334333233).

The spelling of 2120112223021 in words is "two trillion, one hundred twenty billion, one hundred twelve million, two hundred twenty-three thousand, twenty-one".