11001212021201 has 16 divisors (see below), whose sum is σ = 11368656379584. Its totient is φ = 10641534061824.

The previous prime is 11001212021117. The next prime is 11001212021251. The reversal of 11001212021201 is 10212021210011.

It is a cyclic number.

It is not a de Polignac number, because 11001212021201 - 2²² = 11001207826897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001212021251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5796491 + ... + 7456656.

It is an arithmetic number, because the mean of its divisors is an integer number (710541023724).

Almost surely, 2^{11001212021201} is an apocalyptic number.

It is an amenable number.

11001212021201 is a deficient number, since it is larger than the sum of its proper divisors (367444358383).

11001212021201 is a wasteful number, since it uses less digits than its factorization.

11001212021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13253440.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11001212021201 its reverse (10212021210011), we get a palindrome (21213233231212).

The spelling of 11001212021201 in words is "eleven trillion, one billion, two hundred twelve million, twenty-one thousand, two hundred one".