1002210113021 has 4 divisors (see below), whose sum is σ = 1079303198652. Its totient is φ = 925117027392.

The previous prime is 1002210113011. The next prime is 1002210113087. The reversal of 1002210113021 is 1203110122001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 179107550521 + 823102562500 = 423211^2 + 907250^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002210113021 - 2¹⁰ = 1002210111997 is a prime.

It is a super-2 number, since 2×1002210113021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002210112987 and 1002210113005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002210113011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38546542796 + ... + 38546542821.

It is an arithmetic number, because the mean of its divisors is an integer number (269825799663).

Almost surely, 2^{1002210113021} is an apocalyptic number.

It is an amenable number.

1002210113021 is a deficient number, since it is larger than the sum of its proper divisors (77093085631).

1002210113021 is an equidigital number, since it uses as much as digits as its factorization.

1002210113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77093085630.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1002210113021 its reverse (1203110122001), we get a palindrome (2205320235022).

The spelling of 1002210113021 in words is "one trillion, two billion, two hundred ten million, one hundred thirteen thousand, twenty-one".