11121022202121 has 48 divisors (see below), whose sum is σ = 17388868224000. Its totient is φ = 6808309428096.

The previous prime is 11121022202107. The next prime is 11121022202131. The reversal of 11121022202121 is 12120222012111.

11121022202121 is a `hidden beast` number, since 111 + 210 + 2 + 220 + 2 + 121 = 666.

It is not a de Polignac number, because 11121022202121 - 2¹⁰ = 11121022201097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121022202094 and 11121022202103.

It is not an unprimeable number, because it can be changed into a prime (11121022202131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176523495 + ... + 176586483.

It is an arithmetic number, because the mean of its divisors is an integer number (362268088000).

Almost surely, 2^{11121022202121} is an apocalyptic number.

It is an amenable number.

11121022202121 is a deficient number, since it is larger than the sum of its proper divisors (6267846021879).

11121022202121 is a wasteful number, since it uses less digits than its factorization.

11121022202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70790 (or 70787 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11121022202121 its reverse (12120222012111), we get a palindrome (23241244214232).

The spelling of 11121022202121 in words is "eleven trillion, one hundred twenty-one billion, twenty-two million, two hundred two thousand, one hundred twenty-one".