11202101012121 has 4 divisors (see below), whose sum is σ = 14936134682832. Its totient is φ = 7468067341412.

The previous prime is 11202101012101. The next prime is 11202101012147. The reversal of 11202101012121 is 12121010120211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11202101012121 - 2⁷ = 11202101011993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11202101012121.

It is not an unprimeable number, because it can be changed into a prime (11202101012101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1867016835351 + ... + 1867016835356.

It is an arithmetic number, because the mean of its divisors is an integer number (3734033670708).

Almost surely, 2^{11202101012121} is an apocalyptic number.

It is an amenable number.

11202101012121 is a deficient number, since it is larger than the sum of its proper divisors (3734033670711).

11202101012121 is an equidigital number, since it uses as much as digits as its factorization.

11202101012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734033670710.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11202101012121 its reverse (12121010120211), we get a palindrome (23323111132332).

The spelling of 11202101012121 in words is "eleven trillion, two hundred two billion, one hundred one million, twelve thousand, one hundred twenty-one".