212020011197 has 2 divisors, whose sum is σ = 212020011198. Its totient is φ = 212020011196.

The previous prime is 212020011191. The next prime is 212020011223. The reversal of 212020011197 is 791110020212.

It is an a-pointer prime, because the next prime (212020011223) can be obtained adding 212020011197 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171285065956 + 40734945241 = 413866^2 + 201829^2 .

It is a cyclic number.

It is not a de Polignac number, because 212020011197 - 2⁸ = 212020010941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212020011191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010005598 + 106010005599.

It is an arithmetic number, because the mean of its divisors is an integer number (106010005599).

Almost surely, 2^212020011197 is an apocalyptic number.

It is an amenable number.

212020011197 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020011197 is an equidigital number, since it uses as much as digits as its factorization.

212020011197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 212020011197 in words is "two hundred twelve billion, twenty million, eleven thousand, one hundred ninety-seven".