11122011222021 has 24 divisors (see below), whose sum is σ = 18360286723584. Its totient is φ = 6355386102240.

The previous prime is 11122011222011. The next prime is 11122011222043. The reversal of 11122011222021 is 12022211022111.

11122011222021 is a `hidden beast` number, since 111 + 220 + 112 + 220 + 2 + 1 = 666.

It is not a de Polignac number, because 11122011222021 - 2¹³ = 11122011213829 is a prime.

It is a super-2 number, since 2×11122011222021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11122011221985 and 11122011222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122011222001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8569036 + ... + 9781226.

It is an arithmetic number, because the mean of its divisors is an integer number (765011946816).

Almost surely, 2^{11122011222021} is an apocalyptic number.

It is an amenable number.

11122011222021 is a deficient number, since it is larger than the sum of its proper divisors (7238275501563).

11122011222021 is a wasteful number, since it uses less digits than its factorization.

11122011222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357841 (or 1357838 counting only the distinct ones).

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

Adding to 11122011222021 its reverse (12022211022111), we get a palindrome (23144222244132).

The spelling of 11122011222021 in words is "eleven trillion, one hundred twenty-two billion, eleven million, two hundred twenty-two thousand, twenty-one".