202121132011 has 8 divisors (see below), whose sum is σ = 203098325040. Its totient is φ = 201146286432.

The previous prime is 202121131981. The next prime is 202121132021. The reversal of 202121132011 is 110231121202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202121132011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202121132021) 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, 414120 + ... + 758773.

It is an arithmetic number, because the mean of its divisors is an integer number (25387290630).

Almost surely, 2^202121132011 is an apocalyptic number.

202121132011 is a deficient number, since it is larger than the sum of its proper divisors (977193029).

202121132011 is a wasteful number, since it uses less digits than its factorization.

202121132011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173725.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 202121132011 its reverse (110231121202), we get a palindrome (312352253213).

The spelling of 202121132011 in words is "two hundred two billion, one hundred twenty-one million, one hundred thirty-two thousand, eleven".