2001210222 has 32 divisors (see below), whose sum is σ = 4380096384. Its totient is φ = 604508000.

The previous prime is 2001210187. The next prime is 2001210223. The reversal of 2001210222 is 2220121002.

2001210222 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2001210198 and 2001210207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001210223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26904 + ... + 68747.

It is an arithmetic number, because the mean of its divisors is an integer number (136878012).

Almost surely, 2^2001210222 is an apocalyptic number.

2001210222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001210222 is an abundant number, since it is smaller than the sum of its proper divisors (2378886162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001210222 is a wasteful number, since it uses less digits than its factorization.

2001210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95984.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2001210222 is about 44734.8881970213. Note that the first 3 decimals coincide. The cubic root of 2001210222 is about 1260.1751293485.

Adding to 2001210222 its reverse (2220121002), we get a palindrome (4221331224).

The spelling of 2001210222 in words is "two billion, one million, two hundred ten thousand, two hundred twenty-two".