2001211022 has 8 divisors (see below), whose sum is σ = 3003284856. Its totient is φ = 1000116072.

The previous prime is 2001210989. The next prime is 2001211027. The reversal of 2001211022 is 2201121002.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2001210994 and 2001211012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001211027) 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, 239588 + ... + 247799.

It is an arithmetic number, because the mean of its divisors is an integer number (375410607).

Almost surely, 2^2001211022 is an apocalyptic number.

2001211022 is a deficient number, since it is larger than the sum of its proper divisors (1002073834).

2001211022 is a wasteful number, since it uses less digits than its factorization.

2001211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489442.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2001211022 is about 44734.8971385875. The cubic root of 2001211022 is about 1260.1752972702.

Adding to 2001211022 its reverse (2201121002), we get a palindrome (4202332024).

The spelling of 2001211022 in words is "two billion, one million, two hundred eleven thousand, twenty-two".