212291970199 has 2 divisors, whose sum is σ = 212291970200. Its totient is φ = 212291970198.

The previous prime is 212291970181. The next prime is 212291970211. The reversal of 212291970199 is 991079192212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212291970199 - 2⁷ = 212291970071 is a prime.

It is a super-2 number, since 2×212291970199² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212291970109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106145985099 + 106145985100.

It is an arithmetic number, because the mean of its divisors is an integer number (106145985100).

Almost surely, 2^212291970199 is an apocalyptic number.

212291970199 is a deficient number, since it is larger than the sum of its proper divisors (1).

212291970199 is an equidigital number, since it uses as much as digits as its factorization.

212291970199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 52.

The spelling of 212291970199 in words is "two hundred twelve billion, two hundred ninety-one million, nine hundred seventy thousand, one hundred ninety-nine".