212111020195 has 16 divisors (see below), whose sum is σ = 283690283040. Its totient is φ = 151301481984.

The previous prime is 212111020171. The next prime is 212111020201. The reversal of 212111020195 is 591020111212.

It is a cyclic number.

It is not a de Polignac number, because 212111020195 - 2⁷ = 212111020067 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65667432 + ... + 65670661.

It is an arithmetic number, because the mean of its divisors is an integer number (17730642690).

Almost surely, 2^212111020195 is an apocalyptic number.

212111020195 is a deficient number, since it is larger than the sum of its proper divisors (71579262845).

212111020195 is a wasteful number, since it uses less digits than its factorization.

212111020195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131338134.

The product of its (nonzero) digits is 360, while the sum is 25.

The spelling of 212111020195 in words is "two hundred twelve billion, one hundred eleven million, twenty thousand, one hundred ninety-five".