202220011001 has 4 divisors (see below), whose sum is σ = 204990148212. Its totient is φ = 199449873792.

The previous prime is 202220010989. The next prime is 202220011003. The reversal of 202220011001 is 100110022202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69855018601 + 132364992400 = 264301^2 + 363820^2 .

It is a cyclic number.

It is not a de Polignac number, because 202220011001 - 2¹⁰ = 202220009977 is a prime.

It is a super-2 number, since 2×202220011001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202220011003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385068496 + ... + 1385068641.

It is an arithmetic number, because the mean of its divisors is an integer number (51247537053).

Almost surely, 2^202220011001 is an apocalyptic number.

It is an amenable number.

202220011001 is a deficient number, since it is larger than the sum of its proper divisors (2770137211).

202220011001 is an equidigital number, since it uses as much as digits as its factorization.

202220011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770137210.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202220011001 its reverse (100110022202), we get a palindrome (302330033203).

The spelling of 202220011001 in words is "two hundred two billion, two hundred twenty million, eleven thousand, one".