21303101222 has 16 divisors (see below), whose sum is σ = 34418452992. Its totient is φ = 9830557440.

The previous prime is 21303101221. The next prime is 21303101233. The reversal of 21303101222 is 22210130312.

It is a self number, because there is not a number n which added to its sum of digits gives 21303101222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303101221) 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, 97718 + ... + 228374.

It is an arithmetic number, because the mean of its divisors is an integer number (2151153312).

Almost surely, 2^21303101222 is an apocalyptic number.

21303101222 is a deficient number, since it is larger than the sum of its proper divisors (13115351770).

21303101222 is a wasteful number, since it uses less digits than its factorization.

21303101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136943.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21303101222 its reverse (22210130312), we get a palindrome (43513231534).

The spelling of 21303101222 in words is "twenty-one billion, three hundred three million, one hundred one thousand, two hundred twenty-two".