2002161022 has 4 divisors (see below), whose sum is σ = 3003241536. Its totient is φ = 1001080510.

The previous prime is 2002161013. The next prime is 2002161023. The reversal of 2002161022 is 2201612002.

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

It is a junction number, because it is equal to n+sod(n) for n = 2002160987 and 2002161005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002161023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500540254 + ... + 500540257.

It is an arithmetic number, because the mean of its divisors is an integer number (750810384).

Almost surely, 2^2002161022 is an apocalyptic number.

2002161022 is a deficient number, since it is larger than the sum of its proper divisors (1001080514).

2002161022 is a wasteful number, since it uses less digits than its factorization.

2002161022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001080513.

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

The square root of 2002161022 is about 44745.5139874379. The cubic root of 2002161022 is about 1260.3746727371.

Adding to 2002161022 its reverse (2201612002), we get a palindrome (4203773024).

The spelling of 2002161022 in words is "two billion, two million, one hundred sixty-one thousand, twenty-two".