22111012020989 has 2 divisors, whose sum is σ = 22111012020990. Its totient is φ = 22111012020988.

The previous prime is 22111012020983. The next prime is 22111012021009. The reversal of 22111012020989 is 98902021011122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20910545568025 + 1200466452964 = 4572805^2 + 1095658^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111012020989 - 2⁴ = 22111012020973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22111012020983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055506010494 + 11055506010495.

It is an arithmetic number, because the mean of its divisors is an integer number (11055506010495).

Almost surely, 2^{22111012020989} is an apocalyptic number.

It is an amenable number.

22111012020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111012020989 is an equidigital number, since it uses as much as digits as its factorization.

22111012020989 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 22111012020989 in words is "twenty-two trillion, one hundred eleven billion, twelve million, twenty thousand, nine hundred eighty-nine".