222121201010002 has 128 divisors (see below), whose sum is σ = 418678926336000. Its totient is φ = 88122339885888.

The previous prime is 222121201009993. The next prime is 222121201010003. The reversal of 222121201010002 is 200010102121222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (222121201010003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72449683 + ... + 75453289.

It is an arithmetic number, because the mean of its divisors is an integer number (3270929112000).

Almost surely, 2^{222121201010002} is an apocalyptic number.

222121201010002 is a deficient number, since it is larger than the sum of its proper divisors (196557725325998).

222121201010002 is a wasteful number, since it uses less digits than its factorization.

222121201010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003805 (or 3003791 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222121201010002 its reverse (200010102121222), we get a palindrome (422131303131224).

The spelling of 222121201010002 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred one million, ten thousand, two".