1201174220 has 24 divisors (see below), whose sum is σ = 2537577504. Its totient is φ = 477591296.

The previous prime is 1201174217. The next prime is 1201174231. The reversal of 1201174220 is 224711021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1201174192 and 1201174201.

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, 176477 + ... + 183156.

It is an arithmetic number, because the mean of its divisors is an integer number (105732396).

Almost surely, 2^1201174220 is an apocalyptic number.

1201174220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201174220 is an abundant number, since it is smaller than the sum of its proper divisors (1336403284).

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

1201174220 is a wasteful number, since it uses less digits than its factorization.

1201174220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359809 (or 359807 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1201174220 is about 34657.9604131576. The cubic root of 1201174220 is about 1063.0050658965.

Adding to 1201174220 its reverse (224711021), we get a palindrome (1425885241).

The spelling of 1201174220 in words is "one billion, two hundred one million, one hundred seventy-four thousand, two hundred twenty".