1002110210021 has 16 divisors (see below), whose sum is σ = 1076719464576. Its totient is φ = 929326811136.

The previous prime is 1002110209901. The next prime is 1002110210029. The reversal of 1002110210021 is 1200120112001.

It is a de Polignac number, because none of the positive numbers 2^k-1002110210021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002110209984 and 1002110210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002110210029) 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, 964241 + ... + 1712886.

It is an arithmetic number, because the mean of its divisors is an integer number (67294966536).

Almost surely, 2^{1002110210021} is an apocalyptic number.

It is an amenable number.

1002110210021 is a deficient number, since it is larger than the sum of its proper divisors (74609254555).

1002110210021 is a wasteful number, since it uses less digits than its factorization.

1002110210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677468.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1002110210021 its reverse (1200120112001), we get a palindrome (2202230322022).

The spelling of 1002110210021 in words is "one trillion, two billion, one hundred ten million, two hundred ten thousand, twenty-one".