22001112122 has 32 divisors (see below), whose sum is σ = 38148465024. Its totient is φ = 9405107200.

The previous prime is 22001112121. The next prime is 22001112127. The reversal of 22001112122 is 22121110022.

It is a junction number, because it is equal to n+sod(n) for n = 22001112097 and 22001112106.

It is not an unprimeable number, because it can be changed into a prime (22001112121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487403 + ... + 530625.

It is an arithmetic number, because the mean of its divisors is an integer number (1192139532).

Almost surely, 2^22001112122 is an apocalyptic number.

22001112122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22001112122 is a deficient number, since it is larger than the sum of its proper divisors (16147352902).

22001112122 is a wasteful number, since it uses less digits than its factorization.

22001112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44614.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22001112122 its reverse (22121110022), we get a palindrome (44122222144).

The spelling of 22001112122 in words is "twenty-two billion, one million, one hundred twelve thousand, one hundred twenty-two".