22012102101989 has 2 divisors, whose sum is σ = 22012102101990. Its totient is φ = 22012102101988.

The previous prime is 22012102101967. The next prime is 22012102102031. The reversal of 22012102101989 is 98910120121022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21688161273025 + 323940828964 = 4657055^2 + 569158^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012102101989 - 2⁸ = 22012102101733 is a prime.

It is a super-2 number, since 2×22012102101989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012102101889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006051050994 + 11006051050995.

It is an arithmetic number, because the mean of its divisors is an integer number (11006051050995).

Almost surely, 2^{22012102101989} is an apocalyptic number.

It is an amenable number.

22012102101989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012102101989 is an equidigital number, since it uses as much as digits as its factorization.

22012102101989 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 38.

The spelling of 22012102101989 in words is "twenty-two trillion, twelve billion, one hundred two million, one hundred one thousand, nine hundred eighty-nine".