22111001121220 has 96 divisors (see below), whose sum is σ = 50752309055616. Its totient is φ = 8024811724800.

The previous prime is 22111001121217. The next prime is 22111001121259. The reversal of 22111001121220 is 2212110011122.

It is a junction number, because it is equal to n+sod(n) for n = 22111001121194 and 22111001121203.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 759213579 + ... + 759242701.

It is an arithmetic number, because the mean of its divisors is an integer number (528669885996).

Almost surely, 2^{22111001121220} is an apocalyptic number.

22111001121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111001121220 is an abundant number, since it is smaller than the sum of its proper divisors (28641307934396).

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

22111001121220 is a wasteful number, since it uses less digits than its factorization.

22111001121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35701 (or 35699 counting only the distinct ones).

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

Adding to 22111001121220 its reverse (2212110011122), we get a palindrome (24323111132342).

The spelling of 22111001121220 in words is "twenty-two trillion, one hundred eleven billion, one million, one hundred twenty-one thousand, two hundred twenty".