120112002002021 has 4 divisors (see below), whose sum is σ = 120293714562444. Its totient is φ = 119930289441600.

The previous prime is 120112002002011. The next prime is 120112002002029. The reversal of 120112002002021 is 120200200211021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49212890736100 + 70899111265921 = 7015190^2 + 8420161^2 .

It is a cyclic number.

It is not a de Polignac number, because 120112002002021 - 2³⁸ = 119837124095077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120112002001987 and 120112002002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112002002029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90856279220 + ... + 90856280541.

It is an arithmetic number, because the mean of its divisors is an integer number (30073428640611).

Almost surely, 2^{120112002002021} is an apocalyptic number.

It is an amenable number.

120112002002021 is a deficient number, since it is larger than the sum of its proper divisors (181712560423).

120112002002021 is an equidigital number, since it uses as much as digits as its factorization.

120112002002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181712560422.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120112002002021 its reverse (120200200211021), we get a palindrome (240312202213042).

The spelling of 120112002002021 in words is "one hundred twenty trillion, one hundred twelve billion, two million, two thousand, twenty-one".