21112132111222 has 8 divisors (see below), whose sum is σ = 31668217749000. Its totient is φ = 10556059528224.

The previous prime is 21112132111129. The next prime is 21112132111237. The reversal of 21112132111222 is 22211123121112.

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

It is a super-2 number, since 2×21112132111222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21112132111193 and 21112132111202.

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, 4122429 + ... + 7695367.

It is an arithmetic number, because the mean of its divisors is an integer number (3958527218625).

Almost surely, 2^{21112132111222} is an apocalyptic number.

21112132111222 is a deficient number, since it is larger than the sum of its proper divisors (10556085637778).

21112132111222 is a wasteful number, since it uses less digits than its factorization.

21112132111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527390.

The product of its digits is 192, while the sum is 22.

Adding to 21112132111222 its reverse (22211123121112), we get a palindrome (43323255232334).

The spelling of 21112132111222 in words is "twenty-one trillion, one hundred twelve billion, one hundred thirty-two million, one hundred eleven thousand, two hundred twenty-two".