2211201212 has 24 divisors (see below), whose sum is σ = 4319559552. Its totient is φ = 981716400.

The previous prime is 2211201199. The next prime is 2211201221. The reversal of 2211201212 is 2121021122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582464 + ... + 586247.

It is an arithmetic number, because the mean of its divisors is an integer number (179981648).

Almost surely, 2^2211201212 is an apocalyptic number.

2211201212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2211201212 is a deficient number, since it is larger than the sum of its proper divisors (2108358340).

2211201212 is a wasteful number, since it uses less digits than its factorization.

2211201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168769 (or 1168767 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2211201212 is about 47023.4113181934. The cubic root of 2211201212 is about 1302.7950143893.

Adding to 2211201212 its reverse (2121021122), we get a palindrome (4332222334).

The spelling of 2211201212 in words is "two billion, two hundred eleven million, two hundred one thousand, two hundred twelve".