220000211121220 has 24 divisors (see below), whose sum is σ = 464766913082304. Its totient is φ = 87473137833696.

The previous prime is 220000211121217. The next prime is 220000211121239. The reversal of 220000211121220 is 22121112000022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220000211121194 and 220000211121203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32934160002 + ... + 32934166681.

It is an arithmetic number, because the mean of its divisors is an integer number (19365288045096).

Almost surely, 2^{220000211121220} is an apocalyptic number.

220000211121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220000211121220 is an abundant number, since it is smaller than the sum of its proper divisors (244766701961084).

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

220000211121220 is a wasteful number, since it uses less digits than its factorization.

220000211121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65868326859 (or 65868326857 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220000211121220 its reverse (22121112000022), we get a palindrome (242121323121242).

The spelling of 220000211121220 in words is "two hundred twenty trillion, two hundred eleven million, one hundred twenty-one thousand, two hundred twenty".