2011222000221 has 16 divisors (see below), whose sum is σ = 3065278771200. Its totient is φ = 1149059889648.

The previous prime is 2011222000217. The next prime is 2011222000237. The reversal of 2011222000221 is 1220002221102.

It is not a de Polignac number, because 2011222000221 - 2² = 2011222000217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011222000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011222000621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8624901 + ... + 8855018.

It is an arithmetic number, because the mean of its divisors is an integer number (191579923200).

Almost surely, 2^{2011222000221} is an apocalyptic number.

2011222000221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2011222000221 is a deficient number, since it is larger than the sum of its proper divisors (1054056770979).

2011222000221 is a wasteful number, since it uses less digits than its factorization.

2011222000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17485408.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2011222000221 its reverse (1220002221102), we get a palindrome (3231224221323).

The spelling of 2011222000221 in words is "two trillion, eleven billion, two hundred twenty-two million, two hundred twenty-one", and thus it is an aban number.