2201031021 has 32 divisors (see below), whose sum is σ = 3556908288. Its totient is φ = 1181859840.

The previous prime is 2201031017. The next prime is 2201031029. The reversal of 2201031021 is 1201301022.

It is not a de Polignac number, because 2201031021 - 2² = 2201031017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201030988 and 2201031006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201031029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235681 + ... + 244841.

It is an arithmetic number, because the mean of its divisors is an integer number (111153384).

Almost surely, 2^2201031021 is an apocalyptic number.

2201031021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2201031021 is a deficient number, since it is larger than the sum of its proper divisors (1355877267).

2201031021 is a wasteful number, since it uses less digits than its factorization.

2201031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9861.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2201031021 is about 46915.1470316357. The cubic root of 2201031021 is about 1300.7945874080.

Adding to 2201031021 its reverse (1201301022), we get a palindrome (3402332043).

The spelling of 2201031021 in words is "two billion, two hundred one million, thirty-one thousand, twenty-one".