22001211011212 has 12 divisors (see below), whose sum is σ = 38512723018336. Its totient is φ = 10997575863120.

The previous prime is 22001211011209. The next prime is 22001211011267. The reversal of 22001211011212 is 21211011210022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757394283 + ... + 757423330.

Almost surely, 2^{22001211011212} is an apocalyptic number.

It is an amenable number.

22001211011212 is a deficient number, since it is larger than the sum of its proper divisors (16511512007124).

22001211011212 is a wasteful number, since it uses less digits than its factorization.

22001211011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514821248 (or 1514821246 counting only the distinct ones).

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

Adding to 22001211011212 its reverse (21211011210022), we get a palindrome (43212222221234).

The spelling of 22001211011212 in words is "twenty-two trillion, one billion, two hundred eleven million, eleven thousand, two hundred twelve".