1021012200211 has 4 divisors (see below), whose sum is σ = 1038317491800. Its totient is φ = 1003706908624.

The previous prime is 1021012200203. The next prime is 1021012200223. The reversal of 1021012200211 is 1120022101201.

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 1021012200211 - 2³ = 1021012200203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021012200191 and 1021012200200.

It is not an unprimeable number, because it can be changed into a prime (1021012200251) 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, 8652645706 + ... + 8652645823.

It is an arithmetic number, because the mean of its divisors is an integer number (259579372950).

Almost surely, 2^{1021012200211} is an apocalyptic number.

1021012200211 is a deficient number, since it is larger than the sum of its proper divisors (17305291589).

1021012200211 is an equidigital number, since it uses as much as digits as its factorization.

1021012200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17305291588.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021012200211 its reverse (1120022101201), we get a palindrome (2141034301412).

The spelling of 1021012200211 in words is "one trillion, twenty-one billion, twelve million, two hundred thousand, two hundred eleven".