11202021112121 has 8 divisors (see below), whose sum is σ = 12805337142720. Its totient is φ = 9599461906608.

The previous prime is 11202021112081. The next prime is 11202021112147. The reversal of 11202021112121 is 12121112020211.

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

It is not a de Polignac number, because 11202021112121 - 2¹⁴ = 11202021095737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11202021112121.

It is not an unprimeable number, because it can be changed into a prime (11202021112151) 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, 189174551 + ... + 189233756.

It is an arithmetic number, because the mean of its divisors is an integer number (1600667142840).

Almost surely, 2^{11202021112121} is an apocalyptic number.

It is an amenable number.

11202021112121 is a deficient number, since it is larger than the sum of its proper divisors (1603316030599).

11202021112121 is an equidigital number, since it uses as much as digits as its factorization.

11202021112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378412543.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11202021112121 its reverse (12121112020211), we get a palindrome (23323133132332).

It can be divided in two parts, 112020211 and 12121, that multiplied together give a palindrome (1357796977531).

The spelling of 11202021112121 in words is "eleven trillion, two hundred two billion, twenty-one million, one hundred twelve thousand, one hundred twenty-one".