21120101120222 has 16 divisors (see below), whose sum is σ = 34208553160320. Its totient is φ = 9721605625632.

The previous prime is 21120101120149. The next prime is 21120101120243. The reversal of 21120101120222 is 22202110102112.

It is a self number, because there is not a number n which added to its sum of digits gives 21120101120222.

It is a congruent number.

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, 1088879822 + ... + 1088899217.

It is an arithmetic number, because the mean of its divisors is an integer number (2138034572520).

Almost surely, 2^{21120101120222} is an apocalyptic number.

21120101120222 is a deficient number, since it is larger than the sum of its proper divisors (13088452040098).

21120101120222 is a wasteful number, since it uses less digits than its factorization.

21120101120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177779427.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21120101120222 its reverse (22202110102112), we get a palindrome (43322211222334).

The spelling of 21120101120222 in words is "twenty-one trillion, one hundred twenty billion, one hundred one million, one hundred twenty thousand, two hundred twenty-two".