202001222101 has 4 divisors (see below), whose sum is σ = 230858539552. Its totient is φ = 173143904652.

The previous prime is 202001222057. The next prime is 202001222131. The reversal of 202001222101 is 101222100202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202001222101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001222131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14428658715 + ... + 14428658728.

It is an arithmetic number, because the mean of its divisors is an integer number (57714634888).

Almost surely, 2^202001222101 is an apocalyptic number.

It is an amenable number.

202001222101 is a deficient number, since it is larger than the sum of its proper divisors (28857317451).

202001222101 is an equidigital number, since it uses as much as digits as its factorization.

202001222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28857317450.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202001222101 its reverse (101222100202), we get a palindrome (303223322303).

The spelling of 202001222101 in words is "two hundred two billion, one million, two hundred twenty-two thousand, one hundred one".