12010001212 has 12 divisors (see below), whose sum is σ = 22928184216. Its totient is φ = 5459091440.

The previous prime is 12010001209. The next prime is 12010001221. The reversal of 12010001212 is 21210001021.

It is a super-2 number, since 2×12010001212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 136477243 + ... + 136477330.

It is an arithmetic number, because the mean of its divisors is an integer number (1910682018).

Almost surely, 2^12010001212 is an apocalyptic number.

It is an amenable number.

12010001212 is a deficient number, since it is larger than the sum of its proper divisors (10918183004).

12010001212 is a wasteful number, since it uses less digits than its factorization.

12010001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272954588 (or 272954586 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12010001212 its reverse (21210001021), we get a palindrome (33220002233).

The spelling of 12010001212 in words is "twelve billion, ten million, one thousand, two hundred twelve".