222020221100020 has 24 divisors (see below), whose sum is σ = 532848530640384. Its totient is φ = 76121218662816.

The previous prime is 222020221099997. The next prime is 222020221100053. The reversal of 222020221100020 is 20001122020222.

It is a junction number, because it is equal to n+sod(n) for n = 222020221099967 and 222020221100003.

It is a congruent number.

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, 792929360932 + ... + 792929361211.

It is an arithmetic number, because the mean of its divisors is an integer number (22202022110016).

Almost surely, 2^{222020221100020} is an apocalyptic number.

222020221100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222020221100020 is an abundant number, since it is smaller than the sum of its proper divisors (310828309540364).

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

222020221100020 is a wasteful number, since it uses less digits than its factorization.

222020221100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585858722159 (or 1585858722157 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222020221100020 its reverse (20001122020222), we get a palindrome (242021343120242).

The spelling of 222020221100020 in words is "two hundred twenty-two trillion, twenty billion, two hundred twenty-one million, one hundred thousand, twenty".