2202111122220 has 72 divisors (see below), whose sum is σ = 7031302190640. Its totient is φ = 556322808960.

The previous prime is 2202111122213. The next prime is 2202111122231. The reversal of 2202111122220 is 222211112022.

It is a happy number.

2202111122220 is a `hidden beast` number, since 220 + 211 + 1 + 12 + 2 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2202111122193 and 2202111122202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321942651 + ... + 321949490.

It is an arithmetic number, because the mean of its divisors is an integer number (97656974870).

Almost surely, 2^{2202111122220} is an apocalyptic number.

2202111122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2202111122220 is an abundant number, since it is smaller than the sum of its proper divisors (4829191068420).

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

2202111122220 is a wasteful number, since it uses less digits than its factorization.

2202111122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643892175 (or 643892170 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2202111122220 its reverse (222211112022), we get a palindrome (2424322234242).

It can be divided in two parts, 220211 and 1122220, that added together give a palindrome (1342431).

The spelling of 2202111122220 in words is "two trillion, two hundred two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred twenty".