1001211212 has 12 divisors (see below), whose sum is σ = 1752558696. Its totient is φ = 500480160.

The previous prime is 1001211203. The next prime is 1001211221. The reversal of 1001211212 is 2121121001.

It is an interprime number because it is at equal distance from previous prime (1001211203) and next prime (1001211221).

It is a junction number, because it is equal to n+sod(n) for n = 1001211193 and 1001211202.

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, 12089 + ... + 46352.

It is an arithmetic number, because the mean of its divisors is an integer number (146046558).

Almost surely, 2^1001211212 is an apocalyptic number.

It is an amenable number.

1001211212 is a deficient number, since it is larger than the sum of its proper divisors (751347484).

1001211212 is a wasteful number, since it uses less digits than its factorization.

1001211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62728 (or 62726 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1001211212 is about 31641.9217494766. The cubic root of 1001211212 is about 1000.4035744391.

Adding to 1001211212 its reverse (2121121001), we get a palindrome (3122332213).

The spelling of 1001211212 in words is "one billion, one million, two hundred eleven thousand, two hundred twelve".