22003111212 has 24 divisors (see below), whose sum is σ = 51343115712. Its totient is φ = 7334010000.

The previous prime is 22003111189. The next prime is 22003111213. The reversal of 22003111212 is 21211130022.

It is a junction number, because it is equal to n+sod(n) for n = 22003111191 and 22003111200.

It is not an unprimeable number, because it can be changed into a prime (22003111213) 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, 343087 + ... + 402137.

It is an arithmetic number, because the mean of its divisors is an integer number (2139296488).

Almost surely, 2^22003111212 is an apocalyptic number.

It is an amenable number.

22003111212 is an abundant number, since it is smaller than the sum of its proper divisors (29340004500).

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

22003111212 is a wasteful number, since it uses less digits than its factorization.

22003111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90109 (or 90107 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22003111212 its reverse (21211130022), we get a palindrome (43214241234).

The spelling of 22003111212 in words is "twenty-two billion, three million, one hundred eleven thousand, two hundred twelve".