1220200210243 has 12 divisors (see below), whose sum is σ = 1494122707560. Its totient is φ = 990839267712.

The previous prime is 1220200210213. The next prime is 1220200210261. The reversal of 1220200210243 is 3420120020221.

It is not a de Polignac number, because 1220200210243 - 2¹³ = 1220200202051 is a prime.

It is a super-2 number, since 2×1220200210243² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1220200210243.

It is not an unprimeable number, because it can be changed into a prime (1220200210213) 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, 655316046 + ... + 655317907.

It is an arithmetic number, because the mean of its divisors is an integer number (124510225630).

Almost surely, 2^{1220200210243} is an apocalyptic number.

1220200210243 is a deficient number, since it is larger than the sum of its proper divisors (273922497317).

1220200210243 is a wasteful number, since it uses less digits than its factorization.

1220200210243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310633986 (or 1310633979 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1220200210243 its reverse (3420120020221), we get a palindrome (4640320230464).

The spelling of 1220200210243 in words is "one trillion, two hundred twenty billion, two hundred million, two hundred ten thousand, two hundred forty-three".