2221000212 has 48 divisors (see below), whose sum is σ = 5458913600. Its totient is φ = 700876800.

The previous prime is 2221000183. The next prime is 2221000213. The reversal of 2221000212 is 2120001222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221000213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460212 + ... + 465012.

Almost surely, 2^2221000212 is an apocalyptic number.

It is an amenable number.

2221000212 is an abundant number, since it is smaller than the sum of its proper divisors (3237913388).

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

2221000212 is a wasteful number, since it uses less digits than its factorization.

2221000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856 (or 6854 counting only the distinct ones).

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

The square root of 2221000212 is about 47127.4889210108. The cubic root of 2221000212 is about 1304.7166361166.

Adding to 2221000212 its reverse (2120001222), we get a palindrome (4341001434).

The spelling of 2221000212 in words is "two billion, two hundred twenty-one million, two hundred twelve", and thus it is an aban number.