202201101001021 has 2 divisors, whose sum is σ = 202201101001022. Its totient is φ = 202201101001020.

The previous prime is 202201101000971. The next prime is 202201101001091. The reversal of 202201101001021 is 120100101102202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167255091405796 + 34946009595225 = 12932714^2 + 5911515^2 .

It is a cyclic number.

It is not a de Polignac number, because 202201101001021 - 2¹¹ = 202201100998973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202201101000992 and 202201101001010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202201101001091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101100550500510 + 101100550500511.

It is an arithmetic number, because the mean of its divisors is an integer number (101100550500511).

Almost surely, 2^{202201101001021} is an apocalyptic number.

It is an amenable number.

202201101001021 is a deficient number, since it is larger than the sum of its proper divisors (1).

202201101001021 is an equidigital number, since it uses as much as digits as its factorization.

202201101001021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202201101001021 its reverse (120100101102202), we get a palindrome (322301202103223).

The spelling of 202201101001021 in words is "two hundred two trillion, two hundred one billion, one hundred one million, one thousand, twenty-one".