1000210012021 has 16 divisors (see below), whose sum is σ = 1138861214208. Its totient is φ = 869532246000.

The previous prime is 1000210011989. The next prime is 1000210012049. The reversal of 1000210012021 is 1202100120001.

It is not a de Polignac number, because 1000210012021 - 2⁵ = 1000210011989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000210011989 and 1000210012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000210012621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536950 + ... + 1512856.

It is an arithmetic number, because the mean of its divisors is an integer number (71178825888).

Almost surely, 2^{1000210012021} is an apocalyptic number.

1000210012021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1000210012021 is a deficient number, since it is larger than the sum of its proper divisors (138651202187).

1000210012021 is a wasteful number, since it uses less digits than its factorization.

1000210012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979992.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1000210012021 its reverse (1202100120001), we get a palindrome (2202310132022).

The spelling of 1000210012021 in words is "one trillion, two hundred ten million, twelve thousand, twenty-one".