11221200020001 has 32 divisors (see below), whose sum is σ = 15275749216000. Its totient is φ = 7325768355840.

The previous prime is 11221200019979. The next prime is 11221200020081. The reversal of 11221200020001 is 10002000212211.

It is not a de Polignac number, because 11221200020001 - 2⁶ = 11221200019937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11221200020081) 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, 9946245 + ... + 11016813.

It is an arithmetic number, because the mean of its divisors is an integer number (477367163000).

Almost surely, 2^{11221200020001} is an apocalyptic number.

It is an amenable number.

11221200020001 is a deficient number, since it is larger than the sum of its proper divisors (4054549195999).

11221200020001 is a wasteful number, since it uses less digits than its factorization.

11221200020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071049.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11221200020001 its reverse (10002000212211), we get a palindrome (21223200232212).

The spelling of 11221200020001 in words is "eleven trillion, two hundred twenty-one billion, two hundred million, twenty thousand, one".