21222101201110 has 16 divisors (see below), whose sum is σ = 38208179646000. Its totient is φ = 8486974372896.

The previous prime is 21222101201069. The next prime is 21222101201117. The reversal of 21222101201110 is 1110210122212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222101201117) 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, 233215680 + ... + 233306659.

It is an arithmetic number, because the mean of its divisors is an integer number (2388011227875).

Almost surely, 2^{21222101201110} is an apocalyptic number.

21222101201110 is a deficient number, since it is larger than the sum of its proper divisors (16986078444890).

21222101201110 is a wasteful number, since it uses less digits than its factorization.

21222101201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466526895.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21222101201110 its reverse (1110210122212), we get a palindrome (22332311323322).

The spelling of 21222101201110 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred one million, two hundred one thousand, one hundred ten".