2211212001 has 48 divisors (see below), whose sum is σ = 3193084800. Its totient is φ = 1360558080.

The previous prime is 2211211949. The next prime is 2211212023. The reversal of 2211212001 is 1002121122.

It is not a de Polignac number, because 2211212001 - 2¹⁵ = 2211179233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211212071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11456961 + ... + 11457153.

It is an arithmetic number, because the mean of its divisors is an integer number (66522600).

Almost surely, 2^2211212001 is an apocalyptic number.

It is an amenable number.

2211212001 is a deficient number, since it is larger than the sum of its proper divisors (981872799).

2211212001 is a wasteful number, since it uses less digits than its factorization.

2211212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2211212001 is about 47023.5260375059. The cubic root of 2211212001 is about 1302.7971332727.

Adding to 2211212001 its reverse (1002121122), we get a palindrome (3213333123).

The spelling of 2211212001 in words is "two billion, two hundred eleven million, two hundred twelve thousand, one".