2211300021 has 16 divisors (see below), whose sum is σ = 3391920128. Its totient is φ = 1255230000.

The previous prime is 2211300019. The next prime is 2211300031. The reversal of 2211300021 is 1200031122.

2211300021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2211300021 - 2¹ = 2211300019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211300001) 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, 345505 + ... + 351846.

It is an arithmetic number, because the mean of its divisors is an integer number (211995008).

Almost surely, 2^2211300021 is an apocalyptic number.

2211300021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2211300021 is a deficient number, since it is larger than the sum of its proper divisors (1180620107).

2211300021 is a wasteful number, since it uses less digits than its factorization.

2211300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697512.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2211300021 is about 47024.4619426953. The cubic root of 2211300021 is about 1302.8144195215.

Adding to 2211300021 its reverse (1200031122), we get a palindrome (3411331143).

The spelling of 2211300021 in words is "two billion, two hundred eleven million, three hundred thousand, twenty-one".