22112020001989 has 2 divisors, whose sum is σ = 22112020001990. Its totient is φ = 22112020001988.

The previous prime is 22112020001987. The next prime is 22112020002019. The reversal of 22112020001989 is 98910002021122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12845292545089 + 9266727456900 = 3584033^2 + 3044130^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112020001989 - 2¹ = 22112020001987 is a prime.

It is a super-2 number, since 2×22112020001989² (a number of 27 digits) contains 22 as substring.

Together with 22112020001987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22112020001987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056010000994 + 11056010000995.

It is an arithmetic number, because the mean of its divisors is an integer number (11056010000995).

Almost surely, 2^{22112020001989} is an apocalyptic number.

It is an amenable number.

22112020001989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112020001989 is an equidigital number, since it uses as much as digits as its factorization.

22112020001989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 22112020001989 in words is "twenty-two trillion, one hundred twelve billion, twenty million, one thousand, nine hundred eighty-nine".