222121100210 has 32 divisors (see below), whose sum is σ = 409648482432. Its totient is φ = 86664718720.

The previous prime is 222121100119. The next prime is 222121100213. The reversal of 222121100210 is 12001121222.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222121100213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2198627 + ... + 2297433.

It is an arithmetic number, because the mean of its divisors is an integer number (12801515076).

Almost surely, 2^222121100210 is an apocalyptic number.

222121100210 is a deficient number, since it is larger than the sum of its proper divisors (187527382222).

222121100210 is a wasteful number, since it uses less digits than its factorization.

222121100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104338.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222121100210 its reverse (12001121222), we get a palindrome (234122221432).

The spelling of 222121100210 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, two hundred ten".