11010212120221 has 16 divisors (see below), whose sum is σ = 11166869260800. Its totient is φ = 10854641685888.

The previous prime is 11010212120207. The next prime is 11010212120263. The reversal of 11010212120221 is 12202121201011.

It is a cyclic number.

It is not a de Polignac number, because 11010212120221 - 2²¹ = 11010210023069 is a prime.

It is a super-2 number, since 2×11010212120221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010212120195 and 11010212120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010212123221) 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, 31687585 + ... + 32033161.

It is an arithmetic number, because the mean of its divisors is an integer number (697929328800).

Almost surely, 2^{11010212120221} is an apocalyptic number.

It is an amenable number.

11010212120221 is a deficient number, since it is larger than the sum of its proper divisors (156657140579).

11010212120221 is a wasteful number, since it uses less digits than its factorization.

11010212120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347148.

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

Adding to 11010212120221 its reverse (12202121201011), we get a palindrome (23212333321232).

The spelling of 11010212120221 in words is "eleven trillion, ten billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty-one".