2102000221031 has 2 divisors, whose sum is σ = 2102000221032. Its totient is φ = 2102000221030.

The previous prime is 2102000220977. The next prime is 2102000221051. The reversal of 2102000221031 is 1301220002012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102000221031 - 2²² = 2101996026727 is a prime.

It is a super-2 number, since 2×2102000221031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102000220997 and 2102000221015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102000221051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051000110515 + 1051000110516.

It is an arithmetic number, because the mean of its divisors is an integer number (1051000110516).

Almost surely, 2^{2102000221031} is an apocalyptic number.

2102000221031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102000221031 is an equidigital number, since it uses as much as digits as its factorization.

2102000221031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2102000221031 its reverse (1301220002012), we get a palindrome (3403220223043).

The spelling of 2102000221031 in words is "two trillion, one hundred two billion, two hundred twenty-one thousand, thirty-one".