22011101212 has 12 divisors (see below), whose sum is σ = 38566929016. Its totient is φ = 10991978640.

The previous prime is 22011101197. The next prime is 22011101263. The reversal of 22011101212 is 21210111022.

It is a junction number, because it is equal to n+sod(n) for n = 22011101192 and 22011101201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3389343 + ... + 3395830.

Almost surely, 2^22011101212 is an apocalyptic number.

It is an amenable number.

22011101212 is a deficient number, since it is larger than the sum of its proper divisors (16555827804).

22011101212 is a wasteful number, since it uses less digits than its factorization.

22011101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6785988 (or 6785986 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22011101212 its reverse (21210111022), we get a palindrome (43221212234).

The spelling of 22011101212 in words is "twenty-two billion, eleven million, one hundred one thousand, two hundred twelve".