21442021202 has 16 divisors (see below), whose sum is σ = 36764388672. Its totient is φ = 9187778160.

The previous prime is 21442021201. The next prime is 21442021241. The reversal of 21442021202 is 20212024412.

It is not an unprimeable number, because it can be changed into a prime (21442021201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56324 + ... + 214607.

It is an arithmetic number, because the mean of its divisors is an integer number (2297774292).

Almost surely, 2^21442021202 is an apocalyptic number.

21442021202 is a deficient number, since it is larger than the sum of its proper divisors (15322367470).

21442021202 is a wasteful number, since it uses less digits than its factorization.

21442021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276593.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 21442021202 its reverse (20212024412), we get a palindrome (41654045614).

The spelling of 21442021202 in words is "twenty-one billion, four hundred forty-two million, twenty-one thousand, two hundred two".