221002020100010 has 16 divisors (see below), whose sum is σ = 397806258645000. Its totient is φ = 88400225270016.

The previous prime is 221002020099979. The next prime is 221002020100033. The reversal of 221002020100010 is 10001020200122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60559695204121 + 160442324895889 = 7782011^2 + 12666583^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221002020099964 and 221002020100000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71251835 + ... + 74288814.

Almost surely, 2^{221002020100010} is an apocalyptic number.

221002020100010 is a deficient number, since it is larger than the sum of its proper divisors (176804238544990).

221002020100010 is a wasteful number, since it uses less digits than its factorization.

221002020100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145692505.

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

Adding to 221002020100010 its reverse (10001020200122), we get a palindrome (231003040300132).

The spelling of 221002020100010 in words is "two hundred twenty-one trillion, two billion, twenty million, one hundred thousand, ten".