222121221212010 has 16 divisors (see below), whose sum is σ = 533090930908896. Its totient is φ = 59232325656528.

The previous prime is 222121221211999. The next prime is 222121221212041. The reversal of 222121221212010 is 10212122121222.

It is a Curzon number.

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, 3702020353504 + ... + 3702020353563.

It is an arithmetic number, because the mean of its divisors is an integer number (33318183181806).

Almost surely, 2^{222121221212010} is an apocalyptic number.

222121221212010 is an abundant number, since it is smaller than the sum of its proper divisors (310969709696886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222121221212010 is a wasteful number, since it uses less digits than its factorization.

222121221212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7404040707077.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222121221212010 its reverse (10212122121222), we get a palindrome (232333343333232).

The spelling of 222121221212010 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred twelve thousand, ten".