22012010220 has 24 divisors (see below), whose sum is σ = 61633628784. Its totient is φ = 5869869376.

The previous prime is 22012010203. The next prime is 22012010231. The reversal of 22012010220 is 2201021022.

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 = 22012010196 and 22012010205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183433359 + ... + 183433478.

It is an arithmetic number, because the mean of its divisors is an integer number (2568067866).

Almost surely, 2^22012010220 is an apocalyptic number.

22012010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012010220 is an abundant number, since it is smaller than the sum of its proper divisors (39621618564).

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

22012010220 is a wasteful number, since it uses less digits than its factorization.

22012010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366866849 (or 366866847 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22012010220 its reverse (2201021022), we get a palindrome (24213031242).

The spelling of 22012010220 in words is "twenty-two billion, twelve million, ten thousand, two hundred twenty".