21120111302222 has 8 divisors (see below), whose sum is σ = 33543706185936. Its totient is φ = 9938875906912.

The previous prime is 21120111302189. The next prime is 21120111302263. The reversal of 21120111302222 is 22220311102112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21120111302194 and 21120111302203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310589872058 + ... + 310589872125.

It is an arithmetic number, because the mean of its divisors is an integer number (4192963273242).

Almost surely, 2^{21120111302222} is an apocalyptic number.

21120111302222 is a deficient number, since it is larger than the sum of its proper divisors (12423594883714).

21120111302222 is a wasteful number, since it uses less digits than its factorization.

21120111302222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621179744202.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21120111302222 its reverse (22220311102112), we get a palindrome (43340422404334).

The spelling of 21120111302222 in words is "twenty-one trillion, one hundred twenty billion, one hundred eleven million, three hundred two thousand, two hundred twenty-two".