10212120199 has 4 divisors (see below), whose sum is σ = 10214387536. Its totient is φ = 10209852864.

The previous prime is 10212120179. The next prime is 10212120239. The reversal of 10212120199 is 99102121201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99102121201 = 127 ⋅780331663.

It is a cyclic number.

It is not a de Polignac number, because 10212120199 - 2²⁵ = 10178565767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212120179) 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, 1126899 + ... + 1135924.

It is an arithmetic number, because the mean of its divisors is an integer number (2553596884).

Almost surely, 2^10212120199 is an apocalyptic number.

10212120199 is a deficient number, since it is larger than the sum of its proper divisors (2267337).

10212120199 is an equidigital number, since it uses as much as digits as its factorization.

10212120199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267336.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 10212120199 in words is "ten billion, two hundred twelve million, one hundred twenty thousand, one hundred ninety-nine".