2120200021189 has 2 divisors, whose sum is σ = 2120200021190. Its totient is φ = 2120200021188.

The previous prime is 2120200021141. The next prime is 2120200021243. The reversal of 2120200021189 is 9811200020212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1812679864164 + 307520157025 = 1346358^2 + 554545^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120200021189 - 2¹⁹ = 2120199496901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120200022189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060100010594 + 1060100010595.

It is an arithmetic number, because the mean of its divisors is an integer number (1060100010595).

Almost surely, 2^{2120200021189} is an apocalyptic number.

It is an amenable number.

2120200021189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120200021189 is an equidigital number, since it uses as much as digits as its factorization.

2120200021189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 2120200021189 in words is "two trillion, one hundred twenty billion, two hundred million, twenty-one thousand, one hundred eighty-nine".