2221000003031 has 4 divisors (see below), whose sum is σ = 2249113927200. Its totient is φ = 2192886078864.

The previous prime is 2221000003009. The next prime is 2221000003037. The reversal of 2221000003031 is 1303000001222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2221000003031 - 2¹⁸ = 2220999740887 is a prime.

It is a super-2 number, since 2×2221000003031² (a number of 25 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 = 2221000002997 and 2221000003015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221000003037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14056961966 + ... + 14056962123.

It is an arithmetic number, because the mean of its divisors is an integer number (562278481800).

Almost surely, 2^{2221000003031} is an apocalyptic number.

2221000003031 is a deficient number, since it is larger than the sum of its proper divisors (28113924169).

2221000003031 is an equidigital number, since it uses as much as digits as its factorization.

2221000003031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28113924168.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 2221000003031 its reverse (1303000001222), we get a palindrome (3524000004253).

The spelling of 2221000003031 in words is "two trillion, two hundred twenty-one billion, three thousand, thirty-one".