1021010212201 has 4 divisors (see below), whose sum is σ = 1166868813952. Its totient is φ = 875151610452.

The previous prime is 1021010212151. The next prime is 1021010212241. The reversal of 1021010212201 is 1022120101201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1021010212201 - 2²⁷ = 1020875994473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021010212241) 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, 72929300865 + ... + 72929300878.

It is an arithmetic number, because the mean of its divisors is an integer number (291717203488).

Almost surely, 2^{1021010212201} is an apocalyptic number.

It is an amenable number.

1021010212201 is a deficient number, since it is larger than the sum of its proper divisors (145858601751).

1021010212201 is an equidigital number, since it uses as much as digits as its factorization.

1021010212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145858601750.

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

Adding to 1021010212201 its reverse (1022120101201), we get a palindrome (2043130313402).

The spelling of 1021010212201 in words is "one trillion, twenty-one billion, ten million, two hundred twelve thousand, two hundred one".