11021420 has 24 divisors (see below), whose sum is σ = 23226000. Its totient is φ = 4393152.

The previous prime is 11021411. The next prime is 11021473. The reversal of 11021420 is 2412011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6191 + ... + 7769.

It is an arithmetic number, because the mean of its divisors is an integer number (967750).

Almost surely, 2^11021420 is an apocalyptic number.

11021420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021420 is an abundant number, since it is smaller than the sum of its proper divisors (12204580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021420 is a wasteful number, since it uses less digits than its factorization.

11021420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937 (or 1935 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 11021420 is about 3319.8524063578. The cubic root of 11021420 is about 222.5422719835.

Adding to 11021420 its reverse (2412011), we get a palindrome (13433431).

The spelling of 11021420 in words is "eleven million, twenty-one thousand, four hundred twenty".