11102212061 has 2 divisors, whose sum is σ = 11102212062. Its totient is φ = 11102212060.

The previous prime is 11102212039. The next prime is 11102212181. The reversal of 11102212061 is 16021220111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6807900100 + 4294311961 = 82510^2 + 65531^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102212061 - 2¹⁰ = 11102211037 is a prime.

It is a super-2 number, since 2×11102212061² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11102202061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551106030 + 5551106031.

It is an arithmetic number, because the mean of its divisors is an integer number (5551106031).

Almost surely, 2^11102212061 is an apocalyptic number.

It is an amenable number.

11102212061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102212061 is an equidigital number, since it uses as much as digits as its factorization.

11102212061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11102212061 its reverse (16021220111), we get a palindrome (27123432172).

The spelling of 11102212061 in words is "eleven billion, one hundred two million, two hundred twelve thousand, sixty-one".