2021211424 has 12 divisors (see below), whose sum is σ = 3979260054. Its totient is φ = 1010605696.

The previous prime is 2021211403. The next prime is 2021211433. The reversal of 2021211424 is 4241121202.

It can be written as a sum of positive squares in only one way, i.e., 2019603600 + 1607824 = 44940^2 + 1268^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31581397 + ... + 31581460.

Almost surely, 2^2021211424 is an apocalyptic number.

It is an amenable number.

2021211424 is a deficient number, since it is larger than the sum of its proper divisors (1958048630).

2021211424 is an equidigital number, since it uses as much as digits as its factorization.

2021211424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63162867 (or 63162859 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2021211424 is about 44957.8850036342. The cubic root of 2021211424 is about 1264.3595155841.

Adding to 2021211424 its reverse (4241121202), we get a palindrome (6262332626).

The spelling of 2021211424 in words is "two billion, twenty-one million, two hundred eleven thousand, four hundred twenty-four".