1212233110144 has 64 divisors (see below), whose sum is σ = 2766399609600. Its totient is φ = 518322908160.

The previous prime is 1212233110139. The next prime is 1212233110247. The reversal of 1212233110144 is 4410113322121.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1212233110144² (a number of 25 digits) contains 22 as substring.

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, 1183359 + ... + 1955710.

It is an arithmetic number, because the mean of its divisors is an integer number (43224993900).

Almost surely, 2^{1212233110144} is an apocalyptic number.

1212233110144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1212233110144 is an abundant number, since it is smaller than the sum of its proper divisors (1554166499456).

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

1212233110144 is an equidigital number, since it uses as much as digits as its factorization.

1212233110144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139521 (or 3139509 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1212233110144 its reverse (4410113322121), we get a palindrome (5622346432265).

The spelling of 1212233110144 in words is "one trillion, two hundred twelve billion, two hundred thirty-three million, one hundred ten thousand, one hundred forty-four".