222020122121220 has 96 divisors (see below), whose sum is σ = 622158995404800. Its totient is φ = 59157513345024.

The previous prime is 222020122121219. The next prime is 222020122121227. The reversal of 222020122121220 is 22121221020222.

It is not an unprimeable number, because it can be changed into a prime (222020122121227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372764616 + ... + 373359744.

It is an arithmetic number, because the mean of its divisors is an integer number (6480822868800).

Almost surely, 2^{222020122121220} is an apocalyptic number.

222020122121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222020122121220 is an abundant number, since it is smaller than the sum of its proper divisors (400138873283580).

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

222020122121220 is a wasteful number, since it uses less digits than its factorization.

222020122121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600157 (or 600155 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222020122121220 its reverse (22121221020222), we get a palindrome (244141343141442).

The spelling of 222020122121220 in words is "two hundred twenty-two trillion, twenty billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty".