222210202120020 has 144 divisors (see below), whose sum is σ = 687884808094848. Its totient is φ = 58049349845760.

The previous prime is 222210202119959. The next prime is 222210202120073. The reversal of 222210202120020 is 20021202012222.

222210202120020 is a `hidden beast` number, since 22 + 221 + 0 + 202 + 1 + 200 + 20 = 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 = 222210202119975 and 222210202120002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53367234 + ... + 57380153.

It is an arithmetic number, because the mean of its divisors is an integer number (4776977833992).

Almost surely, 2^{222210202120020} is an apocalyptic number.

222210202120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222210202120020 is an abundant number, since it is smaller than the sum of its proper divisors (465674605974828).

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

222210202120020 is a wasteful number, since it uses less digits than its factorization.

222210202120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110747630 (or 110747625 counting only the distinct ones).

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

Adding to 222210202120020 its reverse (20021202012222), we get a palindrome (242231404132242).

The spelling of 222210202120020 in words is "two hundred twenty-two trillion, two hundred ten billion, two hundred two million, one hundred twenty thousand, twenty".