22001111012122 has 32 divisors (see below), whose sum is σ = 37407327491520. Its totient is φ = 9613123994880.

The previous prime is 22001111012057. The next prime is 22001111012129. The reversal of 22001111012122 is 22121011110022.

It is a junction number, because it is equal to n+sod(n) for n = 22001111012096 and 22001111012105.

It is not an unprimeable number, because it can be changed into a prime (22001111012129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75812223 + ... + 76101874.

It is an arithmetic number, because the mean of its divisors is an integer number (1168978984110).

Almost surely, 2^{22001111012122} is an apocalyptic number.

22001111012122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22001111012122 is a deficient number, since it is larger than the sum of its proper divisors (15406216479398).

22001111012122 is a wasteful number, since it uses less digits than its factorization.

22001111012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151914366.

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

Adding to 22001111012122 its reverse (22121011110022), we get a palindrome (44122122122144).

The spelling of 22001111012122 in words is "twenty-two trillion, one billion, one hundred eleven million, twelve thousand, one hundred twenty-two".