20111220000212 has 24 divisors (see below), whose sum is σ = 38394385797600. Its totient is φ = 9141406844960.

The previous prime is 20111220000161. The next prime is 20111220000233. The reversal of 20111220000212 is 21200002211102.

It is a super-2 number, since 2×20111220000212² (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 7 ways as a sum of consecutive naturals, for example, 6203018 + ... + 8871294.

It is an arithmetic number, because the mean of its divisors is an integer number (1599766074900).

Almost surely, 2^{20111220000212} is an apocalyptic number.

20111220000212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20111220000212 is a deficient number, since it is larger than the sum of its proper divisors (18283165797388).

20111220000212 is a wasteful number, since it uses less digits than its factorization.

20111220000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839591 (or 2839589 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20111220000212 its reverse (21200002211102), we get a palindrome (41311222211314).

The spelling of 20111220000212 in words is "twenty trillion, one hundred eleven billion, two hundred twenty million, two hundred twelve", and thus it is an aban number.