11222021011 has 8 divisors (see below), whose sum is σ = 12398755104. Its totient is φ = 10102688640.

The previous prime is 11222021003. The next prime is 11222021029. The reversal of 11222021011 is 11012022211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11222021011 - 2³ = 11222021003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222020982 and 11222021000.

It is not an unprimeable number, because it can be changed into a prime (11222021611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14350020 + ... + 14350801.

It is an arithmetic number, because the mean of its divisors is an integer number (1549844388).

Almost surely, 2^11222021011 is an apocalyptic number.

11222021011 is a deficient number, since it is larger than the sum of its proper divisors (1176734093).

11222021011 is a wasteful number, since it uses less digits than its factorization.

11222021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28700861.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11222021011 its reverse (11012022211), we get a palindrome (22234043222).

The spelling of 11222021011 in words is "eleven billion, two hundred twenty-two million, twenty-one thousand, eleven".