1212740212122 has 24 divisors (see below), whose sum is σ = 2627633201076. Its totient is φ = 404242213056.

The previous prime is 1212740212111. The next prime is 1212740212157. The reversal of 1212740212122 is 2212120472121.

1212740212122 is a `hidden beast` number, since 1 + 2 + 127 + 402 + 12 + 122 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 871928280441 + 340811931681 = 933771^2 + 583791^2 .

It is a super-3 number, since 3×1212740212122³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1539148 + ... + 2189624.

Almost surely, 2^{1212740212122} is an apocalyptic number.

1212740212122 is an abundant number, since it is smaller than the sum of its proper divisors (1414892988954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212740212122 is a wasteful number, since it uses less digits than its factorization.

1212740212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754062 (or 754059 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

Adding to 1212740212122 its reverse (2212120472121), we get a palindrome (3424860684243).

The spelling of 1212740212122 in words is "one trillion, two hundred twelve billion, seven hundred forty million, two hundred twelve thousand, one hundred twenty-two".