11012221212001 has 8 divisors (see below), whose sum is σ = 11879998911144. Its totient is φ = 10168887955200.

The previous prime is 11012221211989. The next prime is 11012221212043. The reversal of 11012221212001 is 10021212221011.

It can be written as a sum of positive squares in 4 ways, for example, as 3210260558400 + 7801960653601 = 1791720^2 + 2793199^2 .

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 11012221212001 - 2²¹ = 11012219114849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012221212061) 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, 6111109650 + ... + 6111111451.

It is an arithmetic number, because the mean of its divisors is an integer number (1484999863893).

Almost surely, 2^{11012221212001} is an apocalyptic number.

It is an amenable number.

11012221212001 is a deficient number, since it is larger than the sum of its proper divisors (867777699143).

11012221212001 is a wasteful number, since it uses less digits than its factorization.

11012221212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12222221171.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11012221212001 its reverse (10021212221011), we get a palindrome (21033433433012).

The spelling of 11012221212001 in words is "eleven trillion, twelve billion, two hundred twenty-one million, two hundred twelve thousand, one".