221002110102012 has 24 divisors (see below), whose sum is σ = 515672147757312. Its totient is φ = 73667290388400.

The previous prime is 221002110101977. The next prime is 221002110102017. The reversal of 221002110102012 is 210201011200122.

It is a junction number, because it is equal to n+sod(n) for n = 221002110101982 and 221002110102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002110102017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2199687 + ... + 21138657.

It is an arithmetic number, because the mean of its divisors is an integer number (21486339489888).

Almost surely, 2^{221002110102012} is an apocalyptic number.

It is an amenable number.

221002110102012 is an abundant number, since it is smaller than the sum of its proper divisors (294670037655300).

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

221002110102012 is a wasteful number, since it uses less digits than its factorization.

221002110102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19911409 (or 19911407 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221002110102012 its reverse (210201011200122), we get a palindrome (431203121302134).

The spelling of 221002110102012 in words is "two hundred twenty-one trillion, two billion, one hundred ten million, one hundred two thousand, twelve".