20111222000001 has 48 divisors (see below), whose sum is σ = 29770318718784. Its totient is φ = 12066238800000.

The previous prime is 20111221999931. The next prime is 20111222000027. The reversal of 20111222000001 is 10000022211102.

It is not a de Polignac number, because 20111222000001 - 2⁹ = 20111221999489 is a prime.

It is a super-2 number, since 2×20111222000001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20111222000041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 289639650 + ... + 289709076.

It is an arithmetic number, because the mean of its divisors is an integer number (620214973308).

Almost surely, 2^{20111222000001} is an apocalyptic number.

It is an amenable number.

20111222000001 is a deficient number, since it is larger than the sum of its proper divisors (9659096718783).

20111222000001 is a wasteful number, since it uses less digits than its factorization.

20111222000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77454 (or 77443 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20111222000001 its reverse (10000022211102), we get a palindrome (30111244211103).

The spelling of 20111222000001 in words is "twenty trillion, one hundred eleven billion, two hundred twenty-two million, one", and thus it is an aban number.