10202202201220 has 12 divisors (see below), whose sum is σ = 21424624622604. Its totient is φ = 4080880880480.

The previous prime is 10202202201211. The next prime is 10202202201221. The reversal of 10202202201220 is 2210220220201.

It can be written as a sum of positive squares in 2 ways, for example, as 6764285478976 + 3437916722244 = 2600824^2 + 1854162^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10202202201194 and 10202202201203.

It is not an unprimeable number, because it can be changed into a prime (10202202201221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255055055011 + ... + 255055055050.

It is an arithmetic number, because the mean of its divisors is an integer number (1785385385217).

Almost surely, 2^{10202202201220} is an apocalyptic number.

10202202201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10202202201220 is an abundant number, since it is smaller than the sum of its proper divisors (11222422421384).

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

10202202201220 is a wasteful number, since it uses less digits than its factorization.

10202202201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510110110070 (or 510110110068 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10202202201220 its reverse (2210220220201), we get a palindrome (12412422421421).

The spelling of 10202202201220 in words is "ten trillion, two hundred two billion, two hundred two million, two hundred one thousand, two hundred twenty".