1220510200 has 96 divisors (see below), whose sum is σ = 3492588960. Its totient is φ = 386265600.

The previous prime is 1220510119. The next prime is 1220510233. The reversal of 1220510200 is 20150221.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15331 + ... + 51730.

It is an arithmetic number, because the mean of its divisors is an integer number (36381135).

Almost surely, 2^1220510200 is an apocalyptic number.

1220510200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220510200 is an abundant number, since it is smaller than the sum of its proper divisors (2272078760).

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

1220510200 is a wasteful number, since it uses less digits than its factorization.

1220510200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67097 (or 67088 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1220510200 is about 34935.8011214857. The cubic root of 1220510200 is about 1068.6786612666.

Adding to 1220510200 its reverse (20150221), we get a palindrome (1240660421).

The spelling of 1220510200 in words is "one billion, two hundred twenty million, five hundred ten thousand, two hundred".