11022222021012 has 72 divisors (see below), whose sum is σ = 29501122996800. Its totient is φ = 3457896922368.

The previous prime is 11022222020981. The next prime is 11022222021037. The reversal of 11022222021012 is 21012022222011.

It is a happy number.

11022222021012 is a `hidden beast` number, since 1 + 1 + 0 + 222 + 220 + 210 + 12 = 666.

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

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, 56683689 + ... + 56877807.

It is an arithmetic number, because the mean of its divisors is an integer number (409737819400).

Almost surely, 2^{11022222021012} is an apocalyptic number.

11022222021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11022222021012 is an abundant number, since it is smaller than the sum of its proper divisors (18478900975788).

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

11022222021012 is a wasteful number, since it uses less digits than its factorization.

11022222021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286925 (or 286920 counting only the distinct ones).

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

Adding to 11022222021012 its reverse (21012022222011), we get a palindrome (32034244243023).

The spelling of 11022222021012 in words is "eleven trillion, twenty-two billion, two hundred twenty-two million, twenty-one thousand, twelve".