1212442001240 has 32 divisors (see below), whose sum is σ = 2888464769280. Its totient is φ = 456448753152.

The previous prime is 1212442001219. The next prime is 1212442001261. The reversal of 1212442001240 is 421002442121.

It is an interprime number because it is at equal distance from previous prime (1212442001219) and next prime (1212442001261).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891500792 + ... + 891502151.

It is an arithmetic number, because the mean of its divisors is an integer number (90264524040).

Almost surely, 2^{1212442001240} is an apocalyptic number.

1212442001240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212442001240 is an abundant number, since it is smaller than the sum of its proper divisors (1676022768040).

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

1212442001240 is a wasteful number, since it uses less digits than its factorization.

1212442001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783002971 (or 1783002967 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 1212442001240 its reverse (421002442121), we get a palindrome (1633444443361).

The spelling of 1212442001240 in words is "one trillion, two hundred twelve billion, four hundred forty-two million, one thousand, two hundred forty".