11221102220022 has 48 divisors (see below), whose sum is σ = 24349905103680. Its totient is φ = 3734599052016.

The previous prime is 11221102220017. The next prime is 11221102220047. The reversal of 11221102220022 is 22002220112211.

It is a happy number.

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 = 11221102219977 and 11221102220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38939793 + ... + 39226899.

It is an arithmetic number, because the mean of its divisors is an integer number (507289689660).

Almost surely, 2^{11221102220022} is an apocalyptic number.

11221102220022 is an abundant number, since it is smaller than the sum of its proper divisors (13128802883658).

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

11221102220022 is a wasteful number, since it uses less digits than its factorization.

11221102220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290457 (or 290454 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11221102220022 its reverse (22002220112211), we get a palindrome (33223322332233).

The spelling of 11221102220022 in words is "eleven trillion, two hundred twenty-one billion, one hundred two million, two hundred twenty thousand, twenty-two".