22011011021212 has 12 divisors (see below), whose sum is σ = 38529397967256. Its totient is φ = 11002611602000.

The previous prime is 22011011021173. The next prime is 22011011021243. The reversal of 22011011021212 is 21212011011022.

It is a super-2 number, since 2×22011011021212² (a number of 27 digits) contains 22 as substring.

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, 723460039 + ... + 723490462.

It is an arithmetic number, because the mean of its divisors is an integer number (3210783163938).

Almost surely, 2^{22011011021212} is an apocalyptic number.

It is an amenable number.

22011011021212 is a deficient number, since it is larger than the sum of its proper divisors (16518386946044).

22011011021212 is a wasteful number, since it uses less digits than its factorization.

22011011021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446954308 (or 1446954306 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22011011021212 its reverse (21212011011022), we get a palindrome (43223022032234).

The spelling of 22011011021212 in words is "twenty-two trillion, eleven billion, eleven million, twenty-one thousand, two hundred twelve".