220221222212220 has 48 divisors (see below), whose sum is σ = 618845485136928. Its totient is φ = 58513653262080.

The previous prime is 220221222212219. The next prime is 220221222212267. The reversal of 220221222212220 is 22212222122022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6625170571 + ... + 6625203810.

It is an arithmetic number, because the mean of its divisors is an integer number (12892614273686).

Almost surely, 2^{220221222212220} is an apocalyptic number.

220221222212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221222212220 is an abundant number, since it is smaller than the sum of its proper divisors (398624262924708).

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

220221222212220 is a wasteful number, since it uses less digits than its factorization.

220221222212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13250374670 (or 13250374668 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 220221222212220 its reverse (22212222122022), we get a palindrome (242433444334242).

The spelling of 220221222212220 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty".