22201111020 has 48 divisors (see below), whose sum is σ = 67814304768. Its totient is φ = 5382087360.

The previous prime is 22201110983. The next prime is 22201111061. The reversal of 22201111020 is 2011110222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22201110987 and 22201111005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16818364 + ... + 16819683.

It is an arithmetic number, because the mean of its divisors is an integer number (1412798016).

Almost surely, 2^22201111020 is an apocalyptic number.

22201111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201111020 is an abundant number, since it is smaller than the sum of its proper divisors (45613193748).

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

22201111020 is a wasteful number, since it uses less digits than its factorization.

22201111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33638070 (or 33638068 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22201111020 its reverse (2011110222), we get a palindrome (24212221242).

It can be divided in two parts, 2 and 2201111020, that added together give a palindrome (2201111022).

The spelling of 22201111020 in words is "twenty-two billion, two hundred one million, one hundred eleven thousand, twenty".