21424311202 has 16 divisors (see below), whose sum is σ = 37244679552. Its totient is φ = 9052525440.

The previous prime is 21424311191. The next prime is 21424311241. The reversal of 21424311202 is 20211342412.

It is a super-2 number, since 2×21424311202² (a number of 21 digits) contains 22 as substring.

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, 10775823 + ... + 10777810.

It is an arithmetic number, because the mean of its divisors is an integer number (2327792472).

Almost surely, 2^21424311202 is an apocalyptic number.

21424311202 is a deficient number, since it is larger than the sum of its proper divisors (15820368350).

21424311202 is a wasteful number, since it uses less digits than its factorization.

21424311202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21553713.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21424311202 its reverse (20211342412), we get a palindrome (41635653614).

The spelling of 21424311202 in words is "twenty-one billion, four hundred twenty-four million, three hundred eleven thousand, two hundred two".