22222121210010 has 48 divisors (see below), whose sum is σ = 57778744383360. Its totient is φ = 5925772913760.

The previous prime is 22222121209999. The next prime is 22222121210027. The reversal of 22222121210010 is 1001212122222.

It is a happy number.

22222121210010 is a `hidden beast` number, since 222 + 221 + 2 + 1 + 210 + 0 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1665931 + ... + 6871649.

It is an arithmetic number, because the mean of its divisors is an integer number (1203723841320).

Almost surely, 2^{22222121210010} is an apocalyptic number.

22222121210010 is an abundant number, since it is smaller than the sum of its proper divisors (35556623173350).

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

22222121210010 is a wasteful number, since it uses less digits than its factorization.

22222121210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253163 (or 5253160 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22222121210010 its reverse (1001212122222), we get a palindrome (23223333332232).

The spelling of 22222121210010 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred ten thousand, ten".