2211122320 has 40 divisors (see below), whose sum is σ = 5608212480. Its totient is φ = 804044160.

The previous prime is 2211122297. The next prime is 2211122351. The reversal of 2211122320 is 232211122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2211122294 and 2211122303.

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, 1255440 + ... + 1257199.

It is an arithmetic number, because the mean of its divisors is an integer number (140205312).

Almost surely, 2^2211122320 is an apocalyptic number.

2211122320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211122320 is an abundant number, since it is smaller than the sum of its proper divisors (3397090160).

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

2211122320 is a wasteful number, since it uses less digits than its factorization.

2211122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512663 (or 2512657 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2211122320 is about 47022.5724519618. The cubic root of 2211122320 is about 1302.7795203483.

Adding to 2211122320 its reverse (232211122), we get a palindrome (2443333442).

The spelling of 2211122320 in words is "two billion, two hundred eleven million, one hundred twenty-two thousand, three hundred twenty".