1220200407 has 12 divisors (see below), whose sum is σ = 1765394904. Its totient is φ = 812136240.

The previous prime is 1220200369. The next prime is 1220200411. The reversal of 1220200407 is 7040020221.

It is not a de Polignac number, because 1220200407 - 2²⁴ = 1203423191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220200407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220200427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105069 + ... + 116102.

It is an arithmetic number, because the mean of its divisors is an integer number (147116242).

Almost surely, 2^1220200407 is an apocalyptic number.

1220200407 is a deficient number, since it is larger than the sum of its proper divisors (545194497).

1220200407 is a wasteful number, since it uses less digits than its factorization.

1220200407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221790 (or 221787 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1220200407 is about 34931.3670932015. The cubic root of 1220200407 is about 1068.5882353711.

Adding to 1220200407 its reverse (7040020221), we get a palindrome (8260220628).

The spelling of 1220200407 in words is "one billion, two hundred twenty million, two hundred thousand, four hundred seven".