1211333012212 has 6 divisors (see below), whose sum is σ = 2119832771378. Its totient is φ = 605666506104.

The previous prime is 1211333012189. The next prime is 1211333012221. The reversal of 1211333012212 is 2122103331121.

It can be written as a sum of positive squares in only one way, i.e., 1156971291876 + 54361720336 = 1075626^2 + 233156^2 .

It is a super-2 number, since 2×1211333012212² (a number of 25 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 as a sum of consecutive naturals, namely, 151416626523 + ... + 151416626530.

Almost surely, 2^{1211333012212} is an apocalyptic number.

It is an amenable number.

1211333012212 is a deficient number, since it is larger than the sum of its proper divisors (908499759166).

1211333012212 is a wasteful number, since it uses less digits than its factorization.

1211333012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302833253057 (or 302833253055 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1211333012212 its reverse (2122103331121), we get a palindrome (3333436343333).

The spelling of 1211333012212 in words is "one trillion, two hundred eleven billion, three hundred thirty-three million, twelve thousand, two hundred twelve".