11012421 has 16 divisors (see below), whose sum is σ = 17235584. Its totient is φ = 6122304.

The previous prime is 11012411. The next prime is 11012437. The reversal of 11012421 is 12421011.

It is a happy number.

It is not a de Polignac number, because 11012421 - 2⁵ = 11012389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012397 and 11012406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6310 + ... + 7863.

It is an arithmetic number, because the mean of its divisors is an integer number (1077224).

Almost surely, 2^11012421 is an apocalyptic number.

It is an amenable number.

11012421 is a deficient number, since it is larger than the sum of its proper divisors (6223163).

11012421 is a wasteful number, since it uses less digits than its factorization.

11012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14220.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 11012421 is about 3318.4967982507. The cubic root of 11012421 is about 222.4816868318.

Adding to 11012421 its reverse (12421011), we get a palindrome (23433432).

The spelling of 11012421 in words is "eleven million, twelve thousand, four hundred twenty-one".