11222011212021 has 12 divisors (see below), whose sum is σ = 16211682197100. Its totient is φ = 7480366755840.

The previous prime is 11222011211981. The next prime is 11222011212029. The reversal of 11222011212021 is 12021211022211.

It can be written as a sum of positive squares in 2 ways, for example, as 4143724356996 + 7078286855025 = 2035614^2 + 2660505^2 .

It is not a de Polignac number, because 11222011212021 - 2⁴¹ = 9022987956469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11222011211985 and 11222011212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222011212029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81098046 + ... + 81236303.

It is an arithmetic number, because the mean of its divisors is an integer number (1350973516425).

Almost surely, 2^{11222011212021} is an apocalyptic number.

It is an amenable number.

11222011212021 is a deficient number, since it is larger than the sum of its proper divisors (4989670985079).

11222011212021 is a wasteful number, since it uses less digits than its factorization.

11222011212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162342036 (or 162342033 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11222011212021 its reverse (12021211022211), we get a palindrome (23243222234232).

The spelling of 11222011212021 in words is "eleven trillion, two hundred twenty-two billion, eleven million, two hundred twelve thousand, twenty-one".