11022211099981 has 2 divisors, whose sum is σ = 11022211099982. Its totient is φ = 11022211099980.

The previous prime is 11022211099973. The next prime is 11022211100183. The reversal of 11022211099981 is 18999011222011.

11022211099981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7839944000100 + 3182267099881 = 2799990^2 + 1783891^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022211099981 - 2³ = 11022211099973 is a prime.

It is a super-2 number, since 2×11022211099981² (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 (11022211097981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511105549990 + 5511105549991.

It is an arithmetic number, because the mean of its divisors is an integer number (5511105549991).

Almost surely, 2^{11022211099981} is an apocalyptic number.

It is an amenable number.

11022211099981 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022211099981 is an equidigital number, since it uses as much as digits as its factorization.

11022211099981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 46.

The spelling of 11022211099981 in words is "eleven trillion, twenty-two billion, two hundred eleven million, ninety-nine thousand, nine hundred eighty-one".