1202401250251 has 16 divisors (see below), whose sum is σ = 1267129468800. Its totient is φ = 1137818017728.

The previous prime is 1202401250249. The next prime is 1202401250261. The reversal of 1202401250251 is 1520521042021.

It is a cyclic number.

It is not a de Polignac number, because 1202401250251 - 2¹ = 1202401250249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202401250231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124997920 + ... + 125007538.

It is an arithmetic number, because the mean of its divisors is an integer number (79195591800).

Almost surely, 2^{1202401250251} is an apocalyptic number.

1202401250251 is a deficient number, since it is larger than the sum of its proper divisors (64728218549).

1202401250251 is a wasteful number, since it uses less digits than its factorization.

1202401250251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16458.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 1202401250251 its reverse (1520521042021), we get a palindrome (2722922292272).

The spelling of 1202401250251 in words is "one trillion, two hundred two billion, four hundred one million, two hundred fifty thousand, two hundred fifty-one".