11111001021022 has 48 divisors (see below), whose sum is σ = 20251339224192. Its totient is φ = 4550128542960.

The previous prime is 11111001021011. The next prime is 11111001021049. The reversal of 11111001021022 is 22012010011111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11111001020993 and 11111001021011.

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, 349708 + ... + 4726975.

It is an arithmetic number, because the mean of its divisors is an integer number (421902900504).

Almost surely, 2^{11111001021022} is an apocalyptic number.

11111001021022 is a deficient number, since it is larger than the sum of its proper divisors (9140338203170).

11111001021022 is a wasteful number, since it uses less digits than its factorization.

11111001021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077693 (or 5077686 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11111001021022 its reverse (22012010011111), we get a palindrome (33123011032133).

The spelling of 11111001021022 in words is "eleven trillion, one hundred eleven billion, one million, twenty-one thousand, twenty-two".