11021220222001 has 8 divisors (see below), whose sum is σ = 12192489465408. Its totient is φ = 9878174334000.

The previous prime is 11021220221993. The next prime is 11021220222029. The reversal of 11021220222001 is 10022202212011.

It is a happy number.

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 11021220222001 - 2³ = 11021220221993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021220222071) 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, 7055838030 + ... + 7055839591.

It is an arithmetic number, because the mean of its divisors is an integer number (1524061183176).

Almost surely, 2^{11021220222001} is an apocalyptic number.

11021220222001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11021220222001 is a deficient number, since it is larger than the sum of its proper divisors (1171269243407).

11021220222001 is a wasteful number, since it uses less digits than its factorization.

11021220222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14111677703.

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

Adding to 11021220222001 its reverse (10022202212011), we get a palindrome (21043422434012).

The spelling of 11021220222001 in words is "eleven trillion, twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, one".