1100219033981 has 2 divisors, whose sum is σ = 1100219033982. Its totient is φ = 1100219033980.

The previous prime is 1100219033867. The next prime is 1100219033987. The reversal of 1100219033981 is 1893309120011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 645396929956 + 454822104025 = 803366^2 + 674405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100219033981 is a prime.

It is a super-4 number, since 4×1100219033981⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100219033987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550109516990 + 550109516991.

It is an arithmetic number, because the mean of its divisors is an integer number (550109516991).

Almost surely, 2^{1100219033981} is an apocalyptic number.

It is an amenable number.

1100219033981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100219033981 is an equidigital number, since it uses as much as digits as its factorization.

1100219033981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 1100219033981 in words is "one trillion, one hundred billion, two hundred nineteen million, thirty-three thousand, nine hundred eighty-one".