1212311021132 has 12 divisors (see below), whose sum is σ = 2121557095056. Its totient is φ = 606151851120.

The previous prime is 1212311021099. The next prime is 1212311021143. The reversal of 1212311021132 is 2311201132121.

It is a super-2 number, since 2×1212311021132² (a number of 25 digits) contains 22 as substring.

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, 86048 + ... + 1559495.

It is an arithmetic number, because the mean of its divisors is an integer number (176796424588).

Almost surely, 2^{1212311021132} is an apocalyptic number.

It is an amenable number.

1212311021132 is a deficient number, since it is larger than the sum of its proper divisors (909246073924).

1212311021132 is a wasteful number, since it uses less digits than its factorization.

1212311021132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829728 (or 1829726 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1212311021132 its reverse (2311201132121), we get a palindrome (3523512153253).

The spelling of 1212311021132 in words is "one trillion, two hundred twelve billion, three hundred eleven million, twenty-one thousand, one hundred thirty-two".