22222201010220 has 120 divisors (see below), whose sum is σ = 69714164520000. Its totient is φ = 5925725019648.

The previous prime is 22222201010209. The next prime is 22222201010287. The reversal of 22222201010220 is 2201010222222.

22222201010220 is a `hidden beast` number, since 2 + 222 + 220 + 1 + 0 + 1 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22222201010193 and 22222201010202.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52795156 + ... + 53214404.

It is an arithmetic number, because the mean of its divisors is an integer number (580951371000).

Almost surely, 2^{22222201010220} is an apocalyptic number.

22222201010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222201010220 is an abundant number, since it is smaller than the sum of its proper divisors (47491963509780).

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

22222201010220 is a wasteful number, since it uses less digits than its factorization.

22222201010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451989 (or 451978 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22222201010220 its reverse (2201010222222), we get a palindrome (24423211232442).

The spelling of 22222201010220 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred one million, ten thousand, two hundred twenty".