222020101220 has 24 divisors (see below), whose sum is σ = 477613975608. Its totient is φ = 86641990400.

The previous prime is 222020101187. The next prime is 222020101229. The reversal of 222020101220 is 22101020222.

It can be written as a sum of positive squares in 4 ways, for example, as 1535385856 + 220484715364 = 39184^2 + 469558^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222020101195 and 222020101204.

It is not an unprimeable number, because it can be changed into a prime (222020101229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135377291 + ... + 135378930.

It is an arithmetic number, because the mean of its divisors is an integer number (19900582317).

Almost surely, 2^222020101220 is an apocalyptic number.

222020101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222020101220 is an abundant number, since it is smaller than the sum of its proper divisors (255593874388).

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

222020101220 is a wasteful number, since it uses less digits than its factorization.

222020101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270756271 (or 270756269 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 222020101220 its reverse (22101020222), we get a palindrome (244121121442).

The spelling of 222020101220 in words is "two hundred twenty-two billion, twenty million, one hundred one thousand, two hundred twenty".