202121100201 has 8 divisors (see below), whose sum is σ = 269606587104. Its totient is φ = 134691506720.

The previous prime is 202121100193. The next prime is 202121100241. The reversal of 202121100201 is 102001121202.

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 202121100201 - 2³ = 202121100193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202121100241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13964916 + ... + 13979381.

It is an arithmetic number, because the mean of its divisors is an integer number (33700823388).

Almost surely, 2^202121100201 is an apocalyptic number.

It is an amenable number.

202121100201 is a deficient number, since it is larger than the sum of its proper divisors (67485486903).

202121100201 is a wasteful number, since it uses less digits than its factorization.

202121100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27946711.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 202121100201 its reverse (102001121202), we get a palindrome (304122221403).

The spelling of 202121100201 in words is "two hundred two billion, one hundred twenty-one million, one hundred thousand, two hundred one".