1010210210021 has 4 divisors (see below), whose sum is σ = 1013104795500. Its totient is φ = 1007315624544.

The previous prime is 1010210210011. The next prime is 1010210210033. The reversal of 1010210210021 is 1200120120101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 588081928225 + 422128281796 = 766865^2 + 649714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010210210021 is a prime.

It is a super-3 number, since 3×1010210210021³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1010210209984 and 1010210210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010210210011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447292216 + ... + 1447292913.

It is an arithmetic number, because the mean of its divisors is an integer number (253276198875).

Almost surely, 2^{1010210210021} is an apocalyptic number.

It is an amenable number.

1010210210021 is a deficient number, since it is larger than the sum of its proper divisors (2894585479).

1010210210021 is an equidigital number, since it uses as much as digits as its factorization.

1010210210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894585478.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1010210210021 its reverse (1200120120101), we get a palindrome (2210330330122).

The spelling of 1010210210021 in words is "one trillion, ten billion, two hundred ten million, two hundred ten thousand, twenty-one".