10202212121001 has 4 divisors (see below), whose sum is σ = 13602949494672. Its totient is φ = 6801474747332.

The previous prime is 10202212120999. The next prime is 10202212121009. The reversal of 10202212121001 is 10012121220201.

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 10202212121001 - 2¹ = 10202212120999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10202212121009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700368686831 + ... + 1700368686836.

It is an arithmetic number, because the mean of its divisors is an integer number (3400737373668).

Almost surely, 2^{10202212121001} is an apocalyptic number.

It is an amenable number.

10202212121001 is a deficient number, since it is larger than the sum of its proper divisors (3400737373671).

10202212121001 is an equidigital number, since it uses as much as digits as its factorization.

10202212121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400737373670.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10202212121001 its reverse (10012121220201), we get a palindrome (20214333341202).

The spelling of 10202212121001 in words is "ten trillion, two hundred two billion, two hundred twelve million, one hundred twenty-one thousand, one".