212244667899 has 16 divisors (see below), whose sum is σ = 310079525760. Its totient is φ = 128066461760.

The previous prime is 212244667781. The next prime is 212244667903. The reversal of 212244667899 is 998766442212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212244667899 - 2⁸ = 212244667643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212244667499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14159154 + ... + 14174135.

It is an arithmetic number, because the mean of its divisors is an integer number (19379970360).

Almost surely, 2^212244667899 is an apocalyptic number.

212244667899 is a deficient number, since it is larger than the sum of its proper divisors (97834857861).

212244667899 is a wasteful number, since it uses less digits than its factorization.

212244667899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28333530.

The product of its digits is 20901888, while the sum is 60.

The spelling of 212244667899 in words is "two hundred twelve billion, two hundred forty-four million, six hundred sixty-seven thousand, eight hundred ninety-nine".