22212020319989 has 2 divisors, whose sum is σ = 22212020319990. Its totient is φ = 22212020319988.

The previous prime is 22212020319941. The next prime is 22212020320031. The reversal of 22212020319989 is 98991302021222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22161027002500 + 50993317489 = 4707550^2 + 225817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22212020319989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22212020219989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106010159994 + 11106010159995.

It is an arithmetic number, because the mean of its divisors is an integer number (11106010159995).

Almost surely, 2^{22212020319989} is an apocalyptic number.

It is an amenable number.

22212020319989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212020319989 is an equidigital number, since it uses as much as digits as its factorization.

22212020319989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 22212020319989 in words is "twenty-two trillion, two hundred twelve billion, twenty million, three hundred nineteen thousand, nine hundred eighty-nine".