121010210221001 has 4 divisors (see below), whose sum is σ = 121015886409600. Its totient is φ = 121004534032404.

The previous prime is 121010210220983. The next prime is 121010210221049. The reversal of 121010210221001 is 100122012010121.

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 a de Polignac number, because none of the positive numbers 2^k-121010210221001 is a prime.

It is a super-2 number, since 2×121010210221001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121010210221081) 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, 2838062321 + ... + 2838104958.

It is an arithmetic number, because the mean of its divisors is an integer number (30253971602400).

Almost surely, 2^{121010210221001} is an apocalyptic number.

It is an amenable number.

121010210221001 is a deficient number, since it is larger than the sum of its proper divisors (5676188599).

121010210221001 is an equidigital number, since it uses as much as digits as its factorization.

121010210221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676188598.

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

Adding to 121010210221001 its reverse (100122012010121), we get a palindrome (221132222231122).

The spelling of 121010210221001 in words is "one hundred twenty-one trillion, ten billion, two hundred ten million, two hundred twenty-one thousand, one".