2112012020197 has 2 divisors, whose sum is σ = 2112012020198. Its totient is φ = 2112012020196.

The previous prime is 2112012020171. The next prime is 2112012020207. The reversal of 2112012020197 is 7910202102112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1872603401761 + 239408618436 = 1368431^2 + 489294^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112012020197 - 2¹⁵ = 2112011987429 is a prime.

It is a super-2 number, since 2×2112012020197² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112012024197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056006010098 + 1056006010099.

It is an arithmetic number, because the mean of its divisors is an integer number (1056006010099).

Almost surely, 2^{2112012020197} is an apocalyptic number.

It is an amenable number.

2112012020197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112012020197 is an equidigital number, since it uses as much as digits as its factorization.

2112012020197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 2112012020197 in words is "two trillion, one hundred twelve billion, twelve million, twenty thousand, one hundred ninety-seven".