1002122102221 has 16 divisors (see below), whose sum is σ = 1018259827200. Its totient is φ = 986114723328.

The previous prime is 1002122102141. The next prime is 1002122102231. The reversal of 1002122102221 is 1222012212001.

It is a happy number.

1002122102221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1002122102221 - 2¹⁵ = 1002122069453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002122102195 and 1002122102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002122102231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16473900 + ... + 16534618.

It is an arithmetic number, because the mean of its divisors is an integer number (63641239200).

Almost surely, 2^{1002122102221} is an apocalyptic number.

It is an amenable number.

1002122102221 is a deficient number, since it is larger than the sum of its proper divisors (16137724979).

1002122102221 is an equidigital number, since it uses as much as digits as its factorization.

1002122102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61788.

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

Adding to 1002122102221 its reverse (1222012212001), we get a palindrome (2224134314222).

The spelling of 1002122102221 in words is "one trillion, two billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty-one".