11212220022 has 16 divisors (see below), whose sum is σ = 22455293952. Its totient is φ = 3732264360.

The previous prime is 11212219999. The next prime is 11212220023. The reversal of 11212220022 is 22002221211.

It is a junction number, because it is equal to n+sod(n) for n = 11212219983 and 11212220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212220023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280854 + ... + 1289577.

It is an arithmetic number, because the mean of its divisors is an integer number (1403455872).

Almost surely, 2^11212220022 is an apocalyptic number.

11212220022 is an abundant number, since it is smaller than the sum of its proper divisors (11243073930).

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

11212220022 is a wasteful number, since it uses less digits than its factorization.

11212220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571163.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11212220022 its reverse (22002221211), we get a palindrome (33214441233).

The spelling of 11212220022 in words is "eleven billion, two hundred twelve million, two hundred twenty thousand, twenty-two".