212102121211019 has 32 divisors (see below), whose sum is σ = 235635679851264. Its totient is φ = 189695951153280.

The previous prime is 212102121211009. The next prime is 212102121211033. The reversal of 212102121211019 is 910112121201212.

It is a de Polignac number, because none of the positive numbers 2^k-212102121211019 is a prime.

It is a super-2 number, since 2×212102121211019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212102121211009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2067966632 + ... + 2068069194.

It is an arithmetic number, because the mean of its divisors is an integer number (7363614995352).

Almost surely, 2^{212102121211019} is an apocalyptic number.

212102121211019 is a deficient number, since it is larger than the sum of its proper divisors (23533558640245).

212102121211019 is a wasteful number, since it uses less digits than its factorization.

212102121211019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141627.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 212102121211019 in words is "two hundred twelve trillion, one hundred two billion, one hundred twenty-one million, two hundred eleven thousand, nineteen".