1220142050 has 12 divisors (see below), whose sum is σ = 2269464306. Its totient is φ = 488056800.

The previous prime is 1220142031. The next prime is 1220142059. The reversal of 1220142050 is 502410221.

It can be written as a sum of positive squares in 3 ways, for example, as 969014641 + 251127409 = 31129^2 + 15847^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1220142059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12201371 + ... + 12201470.

Almost surely, 2^1220142050 is an apocalyptic number.

1220142050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220142050 is a deficient number, since it is larger than the sum of its proper divisors (1049322256).

1220142050 is a wasteful number, since it uses less digits than its factorization.

1220142050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24402853 (or 24402848 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1220142050 is about 34930.5317737935. The cubic root of 1220142050 is about 1068.5711997548.

Adding to 1220142050 its reverse (502410221), we get a palindrome (1722552271).

The spelling of 1220142050 in words is "one billion, two hundred twenty million, one hundred forty-two thousand, fifty".