1212210212 has 12 divisors (see below), whose sum is σ = 2140141836. Its totient is φ = 600741120.

The previous prime is 1212210173. The next prime is 1212210247. The reversal of 1212210212 is 2120122121.

It can be written as a sum of positive squares in 2 ways, for example, as 68823616 + 1143386596 = 8296^2 + 33814^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340489 + ... + 1341392.

It is an arithmetic number, because the mean of its divisors is an integer number (178345153).

Almost surely, 2^1212210212 is an apocalyptic number.

It is an amenable number.

1212210212 is a deficient number, since it is larger than the sum of its proper divisors (927931624).

1212210212 is a wasteful number, since it uses less digits than its factorization.

1212210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681998 (or 2681996 counting only the distinct ones).

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

The square root of 1212210212 is about 34816.8093311263. The cubic root of 1212210212 is about 1066.2506594334.

Adding to 1212210212 its reverse (2120122121), we get a palindrome (3332332333).

The spelling of 1212210212 in words is "one billion, two hundred twelve million, two hundred ten thousand, two hundred twelve".