222221000122210 has 16 divisors (see below), whose sum is σ = 406777423953600. Its totient is φ = 87381816996976.

The previous prime is 222221000122193. The next prime is 222221000122229. The reversal of 222221000122210 is 12221000122222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188322880870 + ... + 188322882049.

It is an arithmetic number, because the mean of its divisors is an integer number (25423588997100).

Almost surely, 2^{222221000122210} is an apocalyptic number.

222221000122210 is a deficient number, since it is larger than the sum of its proper divisors (184556423831390).

222221000122210 is a wasteful number, since it uses less digits than its factorization.

222221000122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376645762985.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222221000122210 its reverse (12221000122222), we get a palindrome (234442000244432).

The spelling of 222221000122210 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two thousand, two hundred ten".