2002021221031 has 8 divisors (see below), whose sum is σ = 2269497740720. Its totient is φ = 1750755399552.

The previous prime is 2002021221017. The next prime is 2002021221061. The reversal of 2002021221031 is 1301221202002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2002021221031 - 2¹¹ = 2002021218983 is a prime.

It is a super-2 number, since 2×2002021221031² (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 = 2002021220996 and 2002021221014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002021221001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4052674290 + ... + 4052674783.

It is an arithmetic number, because the mean of its divisors is an integer number (283687217590).

Almost surely, 2^{2002021221031} is an apocalyptic number.

2002021221031 is a deficient number, since it is larger than the sum of its proper divisors (267476519689).

2002021221031 is a wasteful number, since it uses less digits than its factorization.

2002021221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8105349105.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2002021221031 its reverse (1301221202002), we get a palindrome (3303242423033).

The spelling of 2002021221031 in words is "two trillion, two billion, twenty-one million, two hundred twenty-one thousand, thirty-one".