221001021022010 has 32 divisors (see below), whose sum is σ = 402050218209552. Its totient is φ = 87457673548800.

The previous prime is 221001021022003. The next prime is 221001021022027. The reversal of 221001021022010 is 10220120100122.

It can be written as a sum of positive squares in 8 ways, for example, as 218571653020561 + 2429368001449 = 14784169^2 + 1558643^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83043497 + ... + 85663436.

Almost surely, 2^{221001021022010} is an apocalyptic number.

221001021022010 is a deficient number, since it is larger than the sum of its proper divisors (181049197187542).

221001021022010 is a wasteful number, since it uses less digits than its factorization.

221001021022010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168708338.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221001021022010 its reverse (10220120100122), we get a palindrome (231221141122132).

The spelling of 221001021022010 in words is "two hundred twenty-one trillion, one billion, twenty-one million, twenty-two thousand, ten".