202121200011 has 8 divisors (see below), whose sum is σ = 269509605264. Its totient is φ = 134740130720.

The previous prime is 202121199997. The next prime is 202121200013. The reversal of 202121200011 is 110002121202.

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 202121200011 - 2⁶ = 202121199947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202121200011.

It is not an unprimeable number, because it can be changed into a prime (202121200013) 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, 1769376 + ... + 1880141.

It is an arithmetic number, because the mean of its divisors is an integer number (33688700658).

Almost surely, 2^202121200011 is an apocalyptic number.

202121200011 is a deficient number, since it is larger than the sum of its proper divisors (67388405253).

202121200011 is a wasteful number, since it uses less digits than its factorization.

202121200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667981.

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

Adding to 202121200011 its reverse (110002121202), we get a palindrome (312123321213).

The spelling of 202121200011 in words is "two hundred two billion, one hundred twenty-one million, two hundred thousand, eleven".