202101121221211 has 8 divisors (see below), whose sum is σ = 205919390776464. Its totient is φ = 198283038364320.

The previous prime is 202101121221203. The next prime is 202101121221221. The reversal of 202101121221211 is 112122121101202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202101121221211 - 2³ = 202101121221203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202101121221221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44488180 + ... + 48820081.

It is an arithmetic number, because the mean of its divisors is an integer number (25739923847058).

Almost surely, 2^{202101121221211} is an apocalyptic number.

202101121221211 is a deficient number, since it is larger than the sum of its proper divisors (3818269555253).

202101121221211 is an equidigital number, since it uses as much as digits as its factorization.

202101121221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93349181.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 202101121221211 its reverse (112122121101202), we get a palindrome (314223242322413).

The spelling of 202101121221211 in words is "two hundred two trillion, one hundred one billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred eleven".