1252220140433 has 4 divisors (see below), whose sum is σ = 1252243066368. Its totient is φ = 1252197214500.

The previous prime is 1252220140429. The next prime is 1252220140463. The reversal of 1252220140433 is 3340410222521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1252220140433 - 2² = 1252220140429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252220140396 and 1252220140405.

It is not an unprimeable number, because it can be changed into a prime (1252220140463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11380841 + ... + 11490342.

It is an arithmetic number, because the mean of its divisors is an integer number (313060766592).

Almost surely, 2^{1252220140433} is an apocalyptic number.

It is an amenable number.

1252220140433 is a deficient number, since it is larger than the sum of its proper divisors (22925935).

1252220140433 is an equidigital number, since it uses as much as digits as its factorization.

1252220140433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22925934.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 1252220140433 its reverse (3340410222521), we get a palindrome (4592630362954).

The spelling of 1252220140433 in words is "one trillion, two hundred fifty-two billion, two hundred twenty million, one hundred forty thousand, four hundred thirty-three".