1222001370 has 64 divisors (see below), whose sum is σ = 3266542080. Its totient is φ = 325080000.

The previous prime is 1222001267. The next prime is 1222001371. The reversal of 1222001370 is 731002221.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1222001371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111120 + ... + 121620.

It is an arithmetic number, because the mean of its divisors is an integer number (51039720).

Almost surely, 2^1222001370 is an apocalyptic number.

1222001370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222001370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1633271040).

1222001370 is an abundant number, since it is smaller than the sum of its proper divisors (2044540710).

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

1222001370 is a wasteful number, since it uses less digits than its factorization.

1222001370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10948 (or 10942 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1222001370 is about 34957.1361813293. The cubic root of 1222001370 is about 1069.1137069298.

Adding to 1222001370 its reverse (731002221), we get a palindrome (1953003591).

The spelling of 1222001370 in words is "one billion, two hundred twenty-two million, one thousand, three hundred seventy".