1212412200442 has 16 divisors (see below), whose sum is σ = 1877463424512. Its totient is φ = 586594809360.

The previous prime is 1212412200437. The next prime is 1212412200469. The reversal of 1212412200442 is 2440022142121.

It is a super-2 number, since 2×1212412200442² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 282153 + ... + 1582540.

It is an arithmetic number, because the mean of its divisors is an integer number (117341464032).

Almost surely, 2^{1212412200442} is an apocalyptic number.

1212412200442 is a deficient number, since it is larger than the sum of its proper divisors (665051224070).

1212412200442 is a wasteful number, since it uses less digits than its factorization.

1212412200442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875213.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 1212412200442 its reverse (2440022142121), we get a palindrome (3652434342563).

The spelling of 1212412200442 in words is "one trillion, two hundred twelve billion, four hundred twelve million, two hundred thousand, four hundred forty-two".