1252204505402 has 8 divisors (see below), whose sum is σ = 1878368923200. Its totient is φ = 626081531004.

The previous prime is 1252204505369. The next prime is 1252204505411. The reversal of 1252204505402 is 2045054022521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1252204505402² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10285202 + ... + 10406237.

It is an arithmetic number, because the mean of its divisors is an integer number (234796115400).

Almost surely, 2^{1252204505402} is an apocalyptic number.

1252204505402 is a deficient number, since it is larger than the sum of its proper divisors (626164417798).

1252204505402 is a wasteful number, since it uses less digits than its factorization.

1252204505402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20721700.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 1252204505402 its reverse (2045054022521), we get a palindrome (3297258527923).

The spelling of 1252204505402 in words is "one trillion, two hundred fifty-two billion, two hundred four million, five hundred five thousand, four hundred two".