2221202100122 has 16 divisors (see below), whose sum is σ = 3528195634152. Its totient is φ = 1045151854080.

The previous prime is 2221202100121. The next prime is 2221202100127. The reversal of 2221202100122 is 2210012021222.

It is a happy number.

2221202100122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2215932937201 + 5269162921 = 1488601^2 + 72589^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2221202100122.

It is not an unprimeable number, because it can be changed into a prime (2221202100121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3439763 + ... + 4034150.

Almost surely, 2^{2221202100122} is an apocalyptic number.

2221202100122 is a deficient number, since it is larger than the sum of its proper divisors (1306993534030).

2221202100122 is a wasteful number, since it uses less digits than its factorization.

2221202100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482673.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2221202100122 its reverse (2210012021222), we get a palindrome (4431214121344).

The spelling of 2221202100122 in words is "two trillion, two hundred twenty-one billion, two hundred two million, one hundred thousand, one hundred twenty-two".