1121210222208 has 32 divisors (see below), whose sum is σ = 2978214653760. Its totient is φ = 373736740608.

The previous prime is 1121210222201. The next prime is 1121210222219. The reversal of 1121210222208 is 8022220121211.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1121210222208² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1121210222201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459908760 + ... + 1459909527.

It is an arithmetic number, because the mean of its divisors is an integer number (93069207930).

Almost surely, 2^{1121210222208} is an apocalyptic number.

It is an amenable number.

1121210222208 is an abundant number, since it is smaller than the sum of its proper divisors (1857004431552).

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

1121210222208 is an equidigital number, since it uses as much as digits as its factorization.

1121210222208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919818304 (or 2919818292 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 1121210222208 its reverse (8022220121211), we get a palindrome (9143430343419).

The spelling of 1121210222208 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, two hundred twenty-two thousand, two hundred eight".