22022211012 has 12 divisors (see below), whose sum is σ = 51385159056. Its totient is φ = 7340737000.

The previous prime is 22022210989. The next prime is 22022211031. The reversal of 22022211012 is 21011222022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22022210982 and 22022211000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917592114 + ... + 917592137.

It is an arithmetic number, because the mean of its divisors is an integer number (4282096588).

Almost surely, 2^22022211012 is an apocalyptic number.

It is an amenable number.

22022211012 is an abundant number, since it is smaller than the sum of its proper divisors (29362948044).

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

22022211012 is a wasteful number, since it uses less digits than its factorization.

22022211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835184258 (or 1835184256 counting only the distinct ones).

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

Adding to 22022211012 its reverse (21011222022), we get a palindrome (43033433034).

The spelling of 22022211012 in words is "twenty-two billion, twenty-two million, two hundred eleven thousand, twelve".