222101121210020 has 48 divisors (see below), whose sum is σ = 502294103851008. Its totient is φ = 82005935034240.

The previous prime is 222101121210019. The next prime is 222101121210083. The reversal of 222101121210020 is 20012121101222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31154525 + ... + 37613915.

It is an arithmetic number, because the mean of its divisors is an integer number (10464460496896).

Almost surely, 2^{222101121210020} is an apocalyptic number.

222101121210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222101121210020 is an abundant number, since it is smaller than the sum of its proper divisors (280192982640988).

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

222101121210020 is a wasteful number, since it uses less digits than its factorization.

222101121210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6591660 (or 6591658 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222101121210020 its reverse (20012121101222), we get a palindrome (242113242311242).

The spelling of 222101121210020 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred twenty-one million, two hundred ten thousand, twenty".