11211012221022 has 96 divisors (see below), whose sum is σ = 24620706190080. Its totient is φ = 3686603182080.

The previous prime is 11211012220981. The next prime is 11211012221081. The reversal of 11211012221022 is 22012221011211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11211012220986 and 11211012221004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 304802629 + ... + 304839407.

It is an arithmetic number, because the mean of its divisors is an integer number (256465689480).

Almost surely, 2^{11211012221022} is an apocalyptic number.

11211012221022 is an abundant number, since it is smaller than the sum of its proper divisors (13409693969058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211012221022 is a wasteful number, since it uses less digits than its factorization.

11211012221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37678 (or 37675 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11211012221022 its reverse (22012221011211), we get a palindrome (33223233232233).

The spelling of 11211012221022 in words is "eleven trillion, two hundred eleven billion, twelve million, two hundred twenty-one thousand, twenty-two".