22212120212009 has 32 divisors (see below), whose sum is σ = 28876140969984. Its totient is φ = 16611984325440.

The previous prime is 22212120211993. The next prime is 22212120212033. The reversal of 22212120212009 is 90021202121222.

It is not a de Polignac number, because 22212120212009 - 2⁴ = 22212120211993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22212120212059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91435049 + ... + 91677654.

It is an arithmetic number, because the mean of its divisors is an integer number (902379405312).

Almost surely, 2^{22212120212009} is an apocalyptic number.

It is an amenable number.

22212120212009 is a deficient number, since it is larger than the sum of its proper divisors (6664020757975).

22212120212009 is a wasteful number, since it uses less digits than its factorization.

22212120212009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183112797.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 22212120212009 in words is "twenty-two trillion, two hundred twelve billion, one hundred twenty million, two hundred twelve thousand, nine".