221002001020010 has 32 divisors (see below), whose sum is σ = 465205541023872. Its totient is φ = 74009972433600.

The previous prime is 221002001019991. The next prime is 221002001020039. The reversal of 221002001020010 is 10020100200122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221002001019973 and 221002001020000.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36711292841 + ... + 36711298860.

It is an arithmetic number, because the mean of its divisors is an integer number (14537673156996).

Almost surely, 2^{221002001020010} is an apocalyptic number.

221002001020010 is an abundant number, since it is smaller than the sum of its proper divisors (244203540003862).

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

221002001020010 is a wasteful number, since it uses less digits than its factorization.

221002001020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73422591758.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 221002001020010 its reverse (10020100200122), we get a palindrome (231022101220132).

The spelling of 221002001020010 in words is "two hundred twenty-one trillion, two billion, one million, twenty thousand, ten".