22101122121212 has 24 divisors (see below), whose sum is σ = 41086103427600. Its totient is φ = 10372907143296.

The previous prime is 22101122121191. The next prime is 22101122121293. The reversal of 22101122121212 is 21212122110122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1333956113 + ... + 1333972680.

It is an arithmetic number, because the mean of its divisors is an integer number (1711920976150).

Almost surely, 2^{22101122121212} is an apocalyptic number.

It is an amenable number.

22101122121212 is a deficient number, since it is larger than the sum of its proper divisors (18984981306388).

22101122121212 is a wasteful number, since it uses less digits than its factorization.

22101122121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667928925 (or 2667928923 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22101122121212 its reverse (21212122110122), we get a palindrome (43313244231334).

The spelling of 22101122121212 in words is "twenty-two trillion, one hundred one billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twelve".