11210202121 has 8 divisors (see below), whose sum is σ = 11241810720. Its totient is φ = 11178617472.

The previous prime is 11210202109. The next prime is 11210202131. The reversal of 11210202121 is 12120201211.

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 11210202121 - 2⁵ = 11210202089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11210202131) 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, 1337881 + ... + 1346233.

It is an arithmetic number, because the mean of its divisors is an integer number (1405226340).

Almost surely, 2^11210202121 is an apocalyptic number.

It is an amenable number.

11210202121 is a deficient number, since it is larger than the sum of its proper divisors (31608599).

11210202121 is an equidigital number, since it uses as much as digits as its factorization.

11210202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11975.

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

Adding to 11210202121 its reverse (12120201211), we get a palindrome (23330403332).

The spelling of 11210202121 in words is "eleven billion, two hundred ten million, two hundred two thousand, one hundred twenty-one".