11221222020001 has 32 divisors (see below), whose sum is σ = 13517234546688. Its totient is φ = 9113408133120.

The previous prime is 11221222019927. The next prime is 11221222020083. The reversal of 11221222020001 is 10002022212211.

It is a happy number.

11221222020001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11221222020001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221222021001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415060 + ... + 4755493.

It is an arithmetic number, because the mean of its divisors is an integer number (422413579584).

Almost surely, 2^{11221222020001} is an apocalyptic number.

It is an amenable number.

11221222020001 is a deficient number, since it is larger than the sum of its proper divisors (2296012526687).

11221222020001 is a wasteful number, since it uses less digits than its factorization.

11221222020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5170801.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11221222020001 its reverse (10002022212211), we get a palindrome (21223244232212).

The spelling of 11221222020001 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, twenty thousand, one".