22111222011020 has 48 divisors (see below), whose sum is σ = 48458978205120. Its totient is φ = 8458800193536.

The previous prime is 22111222011013. The next prime is 22111222011061. The reversal of 22111222011020 is 2011022211122.

It is a super-2 number, since 2×22111222011020² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22111222011020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149876 + ... + 6651684.

It is an arithmetic number, because the mean of its divisors is an integer number (1009562045940).

Almost surely, 2^{22111222011020} is an apocalyptic number.

22111222011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111222011020 is an abundant number, since it is smaller than the sum of its proper divisors (26347756194100).

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

22111222011020 is a wasteful number, since it uses less digits than its factorization.

22111222011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509234 (or 6509232 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111222011020 its reverse (2011022211122), we get a palindrome (24122244222142).

The spelling of 22111222011020 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty-two million, eleven thousand, twenty".