1212210000212 has 18 divisors (see below), whose sum is σ = 2137684882074. Its totient is φ = 601478210320.

The previous prime is 1212210000119. The next prime is 1212210000259. The reversal of 1212210000212 is 2120000122121.

It can be written as a sum of positive squares in only one way, i.e., 1053197272516 + 159012727696 = 1026254^2 + 398764^2 .

It is a super-2 number, since 2×1212210000212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8761043 + ... + 8898330.

Almost surely, 2^{1212210000212} is an apocalyptic number.

It is an amenable number.

1212210000212 is a deficient number, since it is larger than the sum of its proper divisors (925474881862).

1212210000212 is a wasteful number, since it uses less digits than its factorization.

1212210000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17659639 (or 17659506 counting only the distinct ones).

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

Adding to 1212210000212 its reverse (2120000122121), we get a palindrome (3332210122333).

The spelling of 1212210000212 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred twelve", and thus it is an aban number.