10201010212121 has 4 divisors (see below), whose sum is σ = 10353264095952. Its totient is φ = 10048756328292.

The previous prime is 10201010212093. The next prime is 10201010212229. The reversal of 10201010212121 is 12121201010201.

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 a cyclic number.

It is not a de Polignac number, because 10201010212121 - 2²² = 10201006017817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201010212096 and 10201010212105.

It is not an unprimeable number, because it can be changed into a prime (10201010212021) 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, 76126941815 + ... + 76126941948.

It is an arithmetic number, because the mean of its divisors is an integer number (2588316023988).

Almost surely, 2^{10201010212121} is an apocalyptic number.

It is an amenable number.

10201010212121 is a deficient number, since it is larger than the sum of its proper divisors (152253883831).

10201010212121 is an equidigital number, since it uses as much as digits as its factorization.

10201010212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152253883830.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10201010212121 its reverse (12121201010201), we get a palindrome (22322211222322).

The spelling of 10201010212121 in words is "ten trillion, two hundred one billion, ten million, two hundred twelve thousand, one hundred twenty-one".