21202232201222 has 32 divisors (see below), whose sum is σ = 32013413961984. Its totient is φ = 10531291226400.

The previous prime is 21202232201197. The next prime is 21202232201237. The reversal of 21202232201222 is 22210223220212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043252753 + ... + 1043273075.

It is an arithmetic number, because the mean of its divisors is an integer number (1000419186312).

Almost surely, 2^{21202232201222} is an apocalyptic number.

21202232201222 is a deficient number, since it is larger than the sum of its proper divisors (10811181760762).

21202232201222 is a wasteful number, since it uses less digits than its factorization.

21202232201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25004.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 21202232201222 its reverse (22210223220212), we get a palindrome (43412455421434).

The spelling of 21202232201222 in words is "twenty-one trillion, two hundred two billion, two hundred thirty-two million, two hundred one thousand, two hundred twenty-two".