11221020200121 has 8 divisors (see below), whose sum is σ = 15044019716544. Its totient is φ = 7439350408560.

The previous prime is 11221020200101. The next prime is 11221020200147. The reversal of 11221020200121 is 12100202012211.

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

It is not a de Polignac number, because 11221020200121 - 2¹⁵ = 11221020167353 is a prime.

It is a super-2 number, since 2×11221020200121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11221020200121.

It is not an unprimeable number, because it can be changed into a prime (11221020200101) 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, 10332430581 + ... + 10332431666.

It is an arithmetic number, because the mean of its divisors is an integer number (1880502464568).

Almost surely, 2^{11221020200121} is an apocalyptic number.

It is an amenable number.

11221020200121 is a deficient number, since it is larger than the sum of its proper divisors (3822999516423).

11221020200121 is a wasteful number, since it uses less digits than its factorization.

11221020200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20664862431.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221020200121 its reverse (12100202012211), we get a palindrome (23321222212332).

The spelling of 11221020200121 in words is "eleven trillion, two hundred twenty-one billion, twenty million, two hundred thousand, one hundred twenty-one".