2201221100122 has 32 divisors (see below), whose sum is σ = 3727023948288. Its totient is φ = 965979000000.

The previous prime is 2201221100069. The next prime is 2201221100149. The reversal of 2201221100122 is 2210011221022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2201221100096 and 2201221100105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3546129 + ... + 4120372.

It is an arithmetic number, because the mean of its divisors is an integer number (116469498384).

Almost surely, 2^{2201221100122} is an apocalyptic number.

2201221100122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2201221100122 is a deficient number, since it is larger than the sum of its proper divisors (1525802848166).

2201221100122 is a wasteful number, since it uses less digits than its factorization.

2201221100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666966.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2201221100122 its reverse (2210011221022), we get a palindrome (4411232321144).

The spelling of 2201221100122 in words is "two trillion, two hundred one billion, two hundred twenty-one million, one hundred thousand, one hundred twenty-two".