11245402021 has 8 divisors (see below), whose sum is σ = 12867548544. Its totient is φ = 9627170640.

The previous prime is 11245402009. The next prime is 11245402027. The reversal of 11245402021 is 12020454211.

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

It is a cyclic number.

It is not a de Polignac number, because 11245402021 - 2⁵ = 11245401989 is a prime.

It is a super-2 number, since 2×11245402021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11245401983 and 11245402001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11245402027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 972625 + ... + 984118.

It is an arithmetic number, because the mean of its divisors is an integer number (1608443568).

Almost surely, 2^11245402021 is an apocalyptic number.

It is an amenable number.

11245402021 is a deficient number, since it is larger than the sum of its proper divisors (1622146523).

11245402021 is an equidigital number, since it uses as much as digits as its factorization.

11245402021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957571.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 11245402021 its reverse (12020454211), we get a palindrome (23265856232).

The spelling of 11245402021 in words is "eleven billion, two hundred forty-five million, four hundred two thousand, twenty-one".