1220143610 has 64 divisors (see below), whose sum is σ = 2582323200. Its totient is φ = 414892800.

The previous prime is 1220143607. The next prime is 1220143621. The reversal of 1220143610 is 163410221.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 434210 + ... + 437010.

It is an arithmetic number, because the mean of its divisors is an integer number (40348800).

Almost surely, 2^1220143610 is an apocalyptic number.

1220143610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220143610 is an abundant number, since it is smaller than the sum of its proper divisors (1362179590).

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

1220143610 is a wasteful number, since it uses less digits than its factorization.

1220143610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956 (or 2942 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1220143610 is about 34930.5541038215. The cubic root of 1220143610 is about 1068.5716551581.

Adding to 1220143610 its reverse (163410221), we get a palindrome (1383553831).

The spelling of 1220143610 in words is "one billion, two hundred twenty million, one hundred forty-three thousand, six hundred ten".