11221211022 has 16 divisors (see below), whose sum is σ = 25648482432. Its totient is φ = 3206060280.

The previous prime is 11221211011. The next prime is 11221211033. The reversal of 11221211022 is 22011212211.

It is an interprime number because it is at equal distance from previous prime (11221211011) and next prime (11221211033).

It is a junction number, because it is equal to n+sod(n) for n = 11221210992 and 11221211010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133585804 + ... + 133585887.

It is an arithmetic number, because the mean of its divisors is an integer number (1603030152).

Almost surely, 2^11221211022 is an apocalyptic number.

11221211022 is an abundant number, since it is smaller than the sum of its proper divisors (14427271410).

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

11221211022 is a wasteful number, since it uses less digits than its factorization.

11221211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267171703.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221211022 its reverse (22011212211), we get a palindrome (33232423233).

The spelling of 11221211022 in words is "eleven billion, two hundred twenty-one million, two hundred eleven thousand, twenty-two".