1002220110021 has 24 divisors (see below), whose sum is σ = 1458038187936. Its totient is φ = 612042774720.

The previous prime is 1002220109999. The next prime is 1002220110077. The reversal of 1002220110021 is 1200110222001.

It is not a de Polignac number, because 1002220110021 - 2³⁹ = 452464296133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002220109979 and 1002220110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002220117021) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 7478490 + ... + 7611323.

It is an arithmetic number, because the mean of its divisors is an integer number (60751591164).

Almost surely, 2^{1002220110021} is an apocalyptic number.

It is an amenable number.

1002220110021 is a deficient number, since it is larger than the sum of its proper divisors (455818077915).

1002220110021 is a wasteful number, since it uses less digits than its factorization.

1002220110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15089973 (or 15089960 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002220110021 its reverse (1200110222001), we get a palindrome (2202330332022).

The spelling of 1002220110021 in words is "one trillion, two billion, two hundred twenty million, one hundred ten thousand, twenty-one".