11021221201011 has 16 divisors (see below), whose sum is σ = 16894806157824. Its totient is φ = 6260129063424.

The previous prime is 11021221201009. The next prime is 11021221201061. The reversal of 11021221201011 is 11010212212011.

It is a happy number.

It is not a de Polignac number, because 11021221201011 - 2¹ = 11021221201009 is a prime.

It is a super-2 number, since 2×11021221201011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11021221201061) 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, 1571314030 + ... + 1571321043.

It is an arithmetic number, because the mean of its divisors is an integer number (1055925384864).

Almost surely, 2^{11021221201011} is an apocalyptic number.

11021221201011 is a deficient number, since it is larger than the sum of its proper divisors (5873584956813).

11021221201011 is a wasteful number, since it uses less digits than its factorization.

11021221201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142635250.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11021221201011 its reverse (11010212212011), we get a palindrome (22031433413022).

The spelling of 11021221201011 in words is "eleven trillion, twenty-one billion, two hundred twenty-one million, two hundred one thousand, eleven".