2001022022 has 16 divisors (see below), whose sum is σ = 3025026000. Its totient is φ = 992695200.

The previous prime is 2001021989. The next prime is 2001022061. The reversal of 2001022022 is 2202201002.

It is a junction number, because it is equal to n+sod(n) for n = 2001021994 and 2001022012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310004 + ... + 316392.

It is an arithmetic number, because the mean of its divisors is an integer number (189064125).

Almost surely, 2^2001022022 is an apocalyptic number.

2001022022 is a deficient number, since it is larger than the sum of its proper divisors (1024003978).

2001022022 is a wasteful number, since it uses less digits than its factorization.

2001022022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7591.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2001022022 is about 44732.7846439275. The cubic root of 2001022022 is about 1260.1356245209.

Adding to 2001022022 its reverse (2202201002), we get a palindrome (4203223024).

The spelling of 2001022022 in words is "two billion, one million, twenty-two thousand, twenty-two".