11220101031 has 12 divisors (see below), whose sum is σ = 15891909032. Its totient is φ = 7040062848.

The previous prime is 11220101029. The next prime is 11220101047. The reversal of 11220101031 is 13010102211.

It is not a de Polignac number, because 11220101031 - 2¹ = 11220101029 is a prime.

It is a super-2 number, since 2×11220101031² (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 = 11220100998 and 11220101016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220101021) 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, 6469780 + ... + 6471513.

Almost surely, 2^11220101031 is an apocalyptic number.

11220101031 is a deficient number, since it is larger than the sum of its proper divisors (4671808001).

11220101031 is a wasteful number, since it uses less digits than its factorization.

11220101031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12941330 (or 12941313 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11220101031 its reverse (13010102211), we get a palindrome (24230203242).

The spelling of 11220101031 in words is "eleven billion, two hundred twenty million, one hundred one thousand, thirty-one".