1212135219536 has 20 divisors (see below), whose sum is σ = 2403128547072. Its totient is φ = 591973013856.

The previous prime is 1212135219521. The next prime is 1212135219541. The reversal of 1212135219536 is 6359125312121.

It is a junction number, because it is equal to n+sod(n) for n = 1212135219493 and 1212135219502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880911536 + ... + 880912911.

Almost surely, 2^{1212135219536} is an apocalyptic number.

1212135219536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1212135219536 is a deficient number, since it is larger than the sum of its proper divisors (1190993327536).

1212135219536 is a wasteful number, since it uses less digits than its factorization.

1212135219536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761824498 (or 1761824492 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The spelling of 1212135219536 in words is "one trillion, two hundred twelve billion, one hundred thirty-five million, two hundred nineteen thousand, five hundred thirty-six".