2021235542 has 16 divisors (see below), whose sum is σ = 3194769600. Its totient is φ = 956423880.

The previous prime is 2021235527. The next prime is 2021235577. The reversal of 2021235542 is 2455321202.

It is a congruent number.

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, 9509 + ... + 64287.

It is an arithmetic number, because the mean of its divisors is an integer number (199673100).

Almost surely, 2^2021235542 is an apocalyptic number.

2021235542 is a deficient number, since it is larger than the sum of its proper divisors (1173534058).

2021235542 is a wasteful number, since it uses less digits than its factorization.

2021235542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55771.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2021235542 is about 44958.1532316442. The cubic root of 2021235542 is about 1264.3645445321.

Adding to 2021235542 its reverse (2455321202), we get a palindrome (4476556744).

The spelling of 2021235542 in words is "two billion, twenty-one million, two hundred thirty-five thousand, five hundred forty-two".