11021212021201 has 16 divisors (see below), whose sum is σ = 11390372630208. Its totient is φ = 10657203480000.

The previous prime is 11021212021163. The next prime is 11021212021213. The reversal of 11021212021201 is 10212021212011.

It is a cyclic number.

It is not a de Polignac number, because 11021212021201 - 2²⁵ = 11021178466769 is a prime.

It is a super-2 number, since 2×11021212021201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021212021291) 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, 42871890 + ... + 43128196.

It is an arithmetic number, because the mean of its divisors is an integer number (711898289388).

Almost surely, 2^{11021212021201} is an apocalyptic number.

It is an amenable number.

11021212021201 is a deficient number, since it is larger than the sum of its proper divisors (369160609007).

11021212021201 is a wasteful number, since it uses less digits than its factorization.

11021212021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266352.

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

Adding to 11021212021201 its reverse (10212021212011), we get a palindrome (21233233233212).

The spelling of 11021212021201 in words is "eleven trillion, twenty-one billion, two hundred twelve million, twenty-one thousand, two hundred one".