222120200122010 has 16 divisors (see below), whose sum is σ = 403938178367976. Its totient is φ = 87932120460288.

The previous prime is 222120200121929. The next prime is 222120200122027. The reversal of 222120200122010 is 10221002021222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 106373005885441 + 115747194236569 = 10313729^2 + 10758587^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222120200122010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114494947547 + ... + 114494949486.

Almost surely, 2^{222120200122010} is an apocalyptic number.

222120200122010 is a deficient number, since it is larger than the sum of its proper divisors (181817978245966).

222120200122010 is a wasteful number, since it uses less digits than its factorization.

222120200122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228989897137.

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

Adding to 222120200122010 its reverse (10221002021222), we get a palindrome (232341202143232).

The spelling of 222120200122010 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred million, one hundred twenty-two thousand, ten".