22110022012 has 48 divisors (see below), whose sum is σ = 41862189600. Its totient is φ = 10157414400.

The previous prime is 22110022001. The next prime is 22110022057. The reversal of 22110022012 is 21022001122.

It is a happy number.

It is a super-2 number, since 2×22110022012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 22110021983 and 22110022001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13740664 + ... + 13742272.

It is an arithmetic number, because the mean of its divisors is an integer number (872128950).

Almost surely, 2^22110022012 is an apocalyptic number.

It is an amenable number.

22110022012 is a deficient number, since it is larger than the sum of its proper divisors (19752167588).

22110022012 is a wasteful number, since it uses less digits than its factorization.

22110022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22110022012 its reverse (21022001122), we get a palindrome (43132023134).

The spelling of 22110022012 in words is "twenty-two billion, one hundred ten million, twenty-two thousand, twelve".