1200220010220 has 96 divisors (see below), whose sum is σ = 4189858960896. Its totient is φ = 249396364800.

The previous prime is 1200220010191. The next prime is 1200220010257. The reversal of 1200220010220 is 220100220021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1200220010196 and 1200220010205.

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, 129889321 + ... + 129898560.

It is an arithmetic number, because the mean of its divisors is an integer number (43644364176).

Almost surely, 2^{1200220010220} is an apocalyptic number.

1200220010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200220010220 is an abundant number, since it is smaller than the sum of its proper divisors (2989638950676).

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

1200220010220 is a wasteful number, since it uses less digits than its factorization.

1200220010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259787911 (or 259787909 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1200220010220 its reverse (220100220021), we get a palindrome (1420320230241).

The spelling of 1200220010220 in words is "one trillion, two hundred billion, two hundred twenty million, ten thousand, two hundred twenty".