22001112202122 has 20 divisors (see below), whose sum is σ = 49298788453266. Its totient is φ = 7333704067320.

The previous prime is 22001112202081. The next prime is 22001112202141. The reversal of 22001112202122 is 22120221110022.

It is a happy number.

22001112202122 is a `hidden beast` number, since 220 + 0 + 1 + 11 + 220 + 212 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15791491770201 + 6209620431921 = 3973851^2 + 2491911^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22001112202095 and 22001112202104.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 67904667129 + ... + 67904667452.

Almost surely, 2^{22001112202122} is an apocalyptic number.

22001112202122 is an abundant number, since it is smaller than the sum of its proper divisors (27297676251144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22001112202122 is a wasteful number, since it uses less digits than its factorization.

22001112202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135809334595 (or 135809334586 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22001112202122 its reverse (22120221110022), we get a palindrome (44121333312144).

The spelling of 22001112202122 in words is "twenty-two trillion, one billion, one hundred twelve million, two hundred two thousand, one hundred twenty-two".