1089022189901 has 2 divisors, whose sum is σ = 1089022189902. Its totient is φ = 1089022189900.

The previous prime is 1089022189867. The next prime is 1089022189939. The reversal of 1089022189901 is 1099812209801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605961049225 + 483061140676 = 778435^2 + 695026^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089022189901 - 2¹⁸ = 1089021927757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1089022189901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089022189951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544511094950 + 544511094951.

It is an arithmetic number, because the mean of its divisors is an integer number (544511094951).

Almost surely, 2^{1089022189901} is an apocalyptic number.

It is an amenable number.

1089022189901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089022189901 is an equidigital number, since it uses as much as digits as its factorization.

1089022189901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 50.

The spelling of 1089022189901 in words is "one trillion, eighty-nine billion, twenty-two million, one hundred eighty-nine thousand, nine hundred one".