1212426104642 has 16 divisors (see below), whose sum is σ = 1928669657472. Its totient is φ = 569649245760.

The previous prime is 1212426104611. The next prime is 1212426104647. The reversal of 1212426104642 is 2464016242121.

It is a happy number.

It is a super-3 number, since 3×1212426104642³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212426104647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28234958 + ... + 28277865.

It is an arithmetic number, because the mean of its divisors is an integer number (120541853592).

Almost surely, 2^{1212426104642} is an apocalyptic number.

1212426104642 is a deficient number, since it is larger than the sum of its proper divisors (716243552830).

1212426104642 is a wasteful number, since it uses less digits than its factorization.

1212426104642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56513473.

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 1212426104642 in words is "one trillion, two hundred twelve billion, four hundred twenty-six million, one hundred four thousand, six hundred forty-two".