220211211212 has 12 divisors (see below), whose sum is σ = 405652231320. Its totient is φ = 104310573696.

The previous prime is 220211211197. The next prime is 220211211217. The reversal of 220211211212 is 212112112022.

It is not an unprimeable number, because it can be changed into a prime (220211211217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448757893 + ... + 1448758044.

It is an arithmetic number, because the mean of its divisors is an integer number (33804352610).

Almost surely, 2^220211211212 is an apocalyptic number.

It is an amenable number.

220211211212 is a deficient number, since it is larger than the sum of its proper divisors (185441020108).

220211211212 is a wasteful number, since it uses less digits than its factorization.

220211211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897515960 (or 2897515958 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220211211212 its reverse (212112112022), we get a palindrome (432323323234).

The spelling of 220211211212 in words is "two hundred twenty billion, two hundred eleven million, two hundred eleven thousand, two hundred twelve".