2222101201221 has 12 divisors (see below), whose sum is σ = 3501492802080. Its totient is φ = 1346728000680.

The previous prime is 2222101201217. The next prime is 2222101201223. The reversal of 2222101201221 is 1221021012222.

It is a happy number.

2222101201221 is a `hidden beast` number, since 22 + 221 + 0 + 1 + 201 + 221 = 666.

It is not a de Polignac number, because 2222101201221 - 2² = 2222101201217 is a prime.

It is a super-2 number, since 2×2222101201221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2222101201194 and 2222101201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222101201223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11222733241 + ... + 11222733438.

It is an arithmetic number, because the mean of its divisors is an integer number (291791066840).

Almost surely, 2^{2222101201221} is an apocalyptic number.

It is an amenable number.

2222101201221 is a deficient number, since it is larger than the sum of its proper divisors (1279391600859).

2222101201221 is a wasteful number, since it uses less digits than its factorization.

2222101201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22445466696 (or 22445466693 counting only the distinct ones).

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

Adding to 2222101201221 its reverse (1221021012222), we get a palindrome (3443122213443).

The spelling of 2222101201221 in words is "two trillion, two hundred twenty-two billion, one hundred one million, two hundred one thousand, two hundred twenty-one".