1212525340142 has 4 divisors (see below), whose sum is σ = 1818788010216. Its totient is φ = 606262670070.

The previous prime is 1212525340139. The next prime is 1212525340163. The reversal of 1212525340142 is 2410435252121.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1212525340099 and 1212525340108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303131335034 + ... + 303131335037.

It is an arithmetic number, because the mean of its divisors is an integer number (454697002554).

Almost surely, 2^{1212525340142} is an apocalyptic number.

1212525340142 is a deficient number, since it is larger than the sum of its proper divisors (606262670074).

1212525340142 is an equidigital number, since it uses as much as digits as its factorization.

1212525340142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606262670073.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 1212525340142 in words is "one trillion, two hundred twelve billion, five hundred twenty-five million, three hundred forty thousand, one hundred forty-two".