36002228021 has 4 divisors (see below), whose sum is σ = 36002608992. Its totient is φ = 36001847052.

The previous prime is 36002227939. The next prime is 36002228027. The reversal of 36002228021 is 12082220063.

36002228021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36002228021 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 (36002228027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70040 + ... + 277326.

It is an arithmetic number, because the mean of its divisors is an integer number (9000652248).

Almost surely, 2^36002228021 is an apocalyptic number.

It is an amenable number.

36002228021 is a deficient number, since it is larger than the sum of its proper divisors (380971).

36002228021 is a wasteful number, since it uses less digits than its factorization.

36002228021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380970.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 36002228021 its reverse (12082220063), we get a palindrome (48084448084).

The spelling of 36002228021 in words is "thirty-six billion, two million, two hundred twenty-eight thousand, twenty-one".