222202201121020 has 48 divisors (see below), whose sum is σ = 496702732327200. Its totient is φ = 83256838917120.

The previous prime is 222202201121011. The next prime is 222202201121023. The reversal of 222202201121020 is 20121102202222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202201121023) by changing a digit.

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, 3285037161 + ... + 3285104800.

It is an arithmetic number, because the mean of its divisors is an integer number (10347973590150).

Almost surely, 2^{222202201121020} is an apocalyptic number.

222202201121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222202201121020 is an abundant number, since it is smaller than the sum of its proper divisors (274500531206180).

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

222202201121020 is a wasteful number, since it uses less digits than its factorization.

222202201121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570142078 (or 6570142076 counting only the distinct ones).

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

Adding to 222202201121020 its reverse (20121102202222), we get a palindrome (242323303323242).

The spelling of 222202201121020 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred one million, one hundred twenty-one thousand, twenty".