11222222020121 has 8 divisors (see below), whose sum is σ = 13383022533504. Its totient is φ = 9200827991520.

The previous prime is 11222222020111. The next prime is 11222222020133. The reversal of 11222222020121 is 12102022222211.

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 11222222020121 - 2¹⁸ = 11222221757977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222222020093 and 11222222020102.

It is not an unprimeable number, because it can be changed into a prime (11222222020111) 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, 34851621020 + ... + 34851621341.

It is an arithmetic number, because the mean of its divisors is an integer number (1672877816688).

Almost surely, 2^{11222222020121} is an apocalyptic number.

It is an amenable number.

11222222020121 is a deficient number, since it is larger than the sum of its proper divisors (2160800513383).

11222222020121 is an equidigital number, since it uses as much as digits as its factorization.

11222222020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69703242391.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11222222020121 its reverse (12102022222211), we get a palindrome (23324244242332).

The spelling of 11222222020121 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, twenty thousand, one hundred twenty-one".