11032221031 has 16 divisors (see below), whose sum is σ = 11954484864. Its totient is φ = 10120587264.

The previous prime is 11032220999. The next prime is 11032221049. The reversal of 11032221031 is 13012223011.

It is a cyclic number.

It is not a de Polignac number, because 11032221031 - 2⁵ = 11032220999 is a prime.

It is a super-2 number, since 2×11032221031² (a number of 21 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 = 11032220996 and 11032221014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11032221631) 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, 3729405 + ... + 3732361.

It is an arithmetic number, because the mean of its divisors is an integer number (747155304).

Almost surely, 2^11032221031 is an apocalyptic number.

11032221031 is a deficient number, since it is larger than the sum of its proper divisors (922263833).

11032221031 is a wasteful number, since it uses less digits than its factorization.

11032221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4650.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11032221031 its reverse (13012223011), we get a palindrome (24044444042).

The spelling of 11032221031 in words is "eleven billion, thirty-two million, two hundred twenty-one thousand, thirty-one".