212220302212 has 24 divisors (see below), whose sum is σ = 381959498592. Its totient is φ = 103109640000.

The previous prime is 212220302209. The next prime is 212220302221. The reversal of 212220302212 is 212203022212.

It is a super-2 number, since 2×212220302212² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212220302212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2536578 + ... + 2618905.

It is an arithmetic number, because the mean of its divisors is an integer number (15914979108).

Almost surely, 2^212220302212 is an apocalyptic number.

It is an amenable number.

212220302212 is a deficient number, since it is larger than the sum of its proper divisors (169739196380).

212220302212 is a wasteful number, since it uses less digits than its factorization.

212220302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155779 (or 5155777 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 212220302212 its reverse (212203022212), we get a palindrome (424423324424).

The spelling of 212220302212 in words is "two hundred twelve billion, two hundred twenty million, three hundred two thousand, two hundred twelve".