11220122020001 has 4 divisors (see below), whose sum is σ = 11295424852500. Its totient is φ = 11144819187504.

The previous prime is 11220122019989. The next prime is 11220122020021. The reversal of 11220122020001 is 10002022102211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5432633301601 + 5787488718400 = 2330801^2 + 2405720^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220122020001 - 2²⁶ = 11220054911137 is a prime.

It is a super-2 number, since 2×11220122020001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220122020021) 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, 37651416026 + ... + 37651416323.

It is an arithmetic number, because the mean of its divisors is an integer number (2823856213125).

Almost surely, 2^{11220122020001} is an apocalyptic number.

It is an amenable number.

11220122020001 is a deficient number, since it is larger than the sum of its proper divisors (75302832499).

11220122020001 is an equidigital number, since it uses as much as digits as its factorization.

11220122020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75302832498.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11220122020001 its reverse (10002022102211), we get a palindrome (21222144122212).

The spelling of 11220122020001 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-two million, twenty thousand, one".