2001211222 has 8 divisors (see below), whose sum is σ = 3002306976. Its totient is φ = 1000442232.

The previous prime is 2001211181. The next prime is 2001211237. The reversal of 2001211222 is 2221121002.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65758 + ... + 91249.

It is an arithmetic number, because the mean of its divisors is an integer number (375288372).

Almost surely, 2^2001211222 is an apocalyptic number.

2001211222 is a deficient number, since it is larger than the sum of its proper divisors (1001095754).

2001211222 is a wasteful number, since it uses less digits than its factorization.

2001211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163382.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2001211222 is about 44734.8993739787. The cubic root of 2001211222 is about 1260.1753392506.

Adding to 2001211222 its reverse (2221121002), we get a palindrome (4222332224).

The spelling of 2001211222 in words is "two billion, one million, two hundred eleven thousand, two hundred twenty-two".