1202220001220 has 96 divisors (see below), whose sum is σ = 2925960710400. Its totient is φ = 406389325824.

The previous prime is 1202220001201. The next prime is 1202220001249. The reversal of 1202220001220 is 221000222021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1202220001195 and 1202220001204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28789316 + ... + 28831044.

It is an arithmetic number, because the mean of its divisors is an integer number (30478757400).

Almost surely, 2^{1202220001220} is an apocalyptic number.

1202220001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202220001220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462980355200).

1202220001220 is an abundant number, since it is smaller than the sum of its proper divisors (1723740709180).

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

1202220001220 is a wasteful number, since it uses less digits than its factorization.

1202220001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44637 (or 44635 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1202220001220 its reverse (221000222021), we get a palindrome (1423220223241).

The spelling of 1202220001220 in words is "one trillion, two hundred two billion, two hundred twenty million, one thousand, two hundred twenty".