20120221000011 has 32 divisors (see below), whose sum is σ = 29860232887296. Its totient is φ = 11948872320000.

The previous prime is 20120220999941. The next prime is 20120221000037. The reversal of 20120221000011 is 11000012202102.

It is not a de Polignac number, because 20120221000011 - 2⁹ = 20120220999499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120221000091) 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 31 ways as a sum of consecutive naturals, for example, 30793555 + ... + 31440156.

It is an arithmetic number, because the mean of its divisors is an integer number (933132277728).

Almost surely, 2^{20120221000011} is an apocalyptic number.

20120221000011 is a deficient number, since it is larger than the sum of its proper divisors (9740011887285).

20120221000011 is a wasteful number, since it uses less digits than its factorization.

20120221000011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62233923.

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

Adding to 20120221000011 its reverse (11000012202102), we get a palindrome (31120233202113).

The spelling of 20120221000011 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-one million, eleven", and thus it is an aban number.