2012200222221 has 24 divisors (see below), whose sum is σ = 3323512459904. Its totient is φ = 1149210776160.

The previous prime is 2012200222217. The next prime is 2012200222243. The reversal of 2012200222221 is 1222220022102.

2012200222221 is a `hidden beast` number, since 2 + 0 + 1 + 220 + 0 + 222 + 221 = 666.

It is not a de Polignac number, because 2012200222221 - 2² = 2012200222217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012200222194 and 2012200222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012200222261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8464081 + ... + 8698566.

Almost surely, 2^{2012200222221} is an apocalyptic number.

2012200222221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2012200222221 is a deficient number, since it is larger than the sum of its proper divisors (1311312237683).

2012200222221 is a wasteful number, since it uses less digits than its factorization.

2012200222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17164521 (or 17164518 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2012200222221 its reverse (1222220022102), we get a palindrome (3234420244323).

The spelling of 2012200222221 in words is "two trillion, twelve billion, two hundred million, two hundred twenty-two thousand, two hundred twenty-one".