12200222101221 has 160 divisors (see below), whose sum is σ = 23344604946432. Its totient is φ = 6165763338240.

The previous prime is 12200222101049. The next prime is 12200222101237. The reversal of 12200222101221 is 12210122200221.

It is a happy number.

12200222101221 is a `hidden beast` number, since 1 + 220 + 0 + 2 + 221 + 0 + 1 + 221 = 666.

It is not a de Polignac number, because 12200222101221 - 2²³ = 12200213712613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12200222101194 and 12200222101203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200222101271) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 48829605 + ... + 49078821.

Almost surely, 2^{12200222101221} is an apocalyptic number.

12200222101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12200222101221 is a deficient number, since it is larger than the sum of its proper divisors (11144382845211).

12200222101221 is a wasteful number, since it uses less digits than its factorization.

12200222101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249461 (or 249452 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12200222101221 its reverse (12210122200221), we get a palindrome (24410344301442).

The spelling of 12200222101221 in words is "twelve trillion, two hundred billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty-one".