2222221101210 has 320 divisors, whose sum is σ = 6594825371904. Its totient is φ = 532450713600.

The previous prime is 2222221101197. The next prime is 2222221101211. The reversal of 2222221101210 is 121011222222.

It is a happy number.

2222221101210 is a `hidden beast` number, since 2 + 222 + 221 + 10 + 1 + 210 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2222221101211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 269977795 + ... + 269986025.

Almost surely, 2^{2222221101210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222221101210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3297412685952).

2222221101210 is an abundant number, since it is smaller than the sum of its proper divisors (4372604270694).

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

2222221101210 is a wasteful number, since it uses less digits than its factorization.

2222221101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8611 (or 8602 counting only the distinct ones).

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

Adding to 2222221101210 its reverse (121011222222), we get a palindrome (2343232323432).

The spelling of 2222221101210 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred one thousand, two hundred ten".