210100021212031 has 2 divisors, whose sum is σ = 210100021212032. Its totient is φ = 210100021212030.

The previous prime is 210100021211989. The next prime is 210100021212101. The reversal of 210100021212031 is 130212120001012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210100021212031 - 2²⁷ = 210099886994303 is a prime.

It is a super-2 number, since 2×210100021212031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210100021211996 and 210100021212014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210100021210031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105050010606015 + 105050010606016.

It is an arithmetic number, because the mean of its divisors is an integer number (105050010606016).

Almost surely, 2^{210100021212031} is an apocalyptic number.

210100021212031 is a deficient number, since it is larger than the sum of its proper divisors (1).

210100021212031 is an equidigital number, since it uses as much as digits as its factorization.

210100021212031 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 16.

Adding to 210100021212031 its reverse (130212120001012), we get a palindrome (340312141213043).

The spelling of 210100021212031 in words is "two hundred ten trillion, one hundred billion, twenty-one million, two hundred twelve thousand, thirty-one".