222121202102010 has 192 divisors, whose sum is σ = 586157843246976. Its totient is φ = 58350184512000.

The previous prime is 222121202101907. The next prime is 222121202102077. The reversal of 222121202102010 is 10201202121222.

It is a happy number.

222121202102010 is a `hidden beast` number, since 2 + 221 + 212 + 0 + 210 + 20 + 1 + 0 = 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 95 ways as a sum of consecutive naturals, for example, 4996742944 + ... + 4996787396.

It is an arithmetic number, because the mean of its divisors is an integer number (3052905433578).

Almost surely, 2^{222121202102010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222121202102010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293078921623488).

222121202102010 is an abundant number, since it is smaller than the sum of its proper divisors (364036641144966).

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

222121202102010 is a wasteful number, since it uses less digits than its factorization.

222121202102010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46461 (or 46458 counting only the distinct ones).

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

Adding to 222121202102010 its reverse (10201202121222), we get a palindrome (232322404223232).

The spelling of 222121202102010 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred two million, one hundred two thousand, ten".