21120201110122 has 8 divisors (see below), whose sum is σ = 31782167587872. Its totient is φ = 10526145247500.

The previous prime is 21120201110087. The next prime is 21120201110131. The reversal of 21120201110122 is 22101110202112.

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

It is a super-2 number, since 2×21120201110122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21120201110096 and 21120201110105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16977653004 + ... + 16977654247.

It is an arithmetic number, because the mean of its divisors is an integer number (3972770948484).

Almost surely, 2^{21120201110122} is an apocalyptic number.

21120201110122 is a deficient number, since it is larger than the sum of its proper divisors (10661966477750).

21120201110122 is a wasteful number, since it uses less digits than its factorization.

21120201110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33955307564.

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

Adding to 21120201110122 its reverse (22101110202112), we get a palindrome (43221311312234).

The spelling of 21120201110122 in words is "twenty-one trillion, one hundred twenty billion, two hundred one million, one hundred ten thousand, one hundred twenty-two".