222102201221020 has 48 divisors (see below), whose sum is σ = 469280123399808. Its totient is φ = 88295080242240.

The previous prime is 222102201220973. The next prime is 222102201221063. The reversal of 222102201221020 is 20122102201222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514039275 + ... + 514471165.

It is an arithmetic number, because the mean of its divisors is an integer number (9776669237496).

Almost surely, 2^{222102201221020} is an apocalyptic number.

222102201221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102201221020 is an abundant number, since it is smaller than the sum of its proper divisors (247177922178788).

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

222102201221020 is a wasteful number, since it uses less digits than its factorization.

222102201221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589810 (or 589808 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222102201221020 its reverse (20122102201222), we get a palindrome (242224303422242).

The spelling of 222102201221020 in words is "two hundred twenty-two trillion, one hundred two billion, two hundred one million, two hundred twenty-one thousand, twenty".