121001020200211 has 4 divisors (see below), whose sum is σ = 121002416028432. Its totient is φ = 120999624371992.

The previous prime is 121001020200197. The next prime is 121001020200223. The reversal of 121001020200211 is 112002020100121.

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 121001020200211 - 2³¹ = 120998872716563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121001020200191 and 121001020200200.

It is not an unprimeable number, because it can be changed into a prime (121001024200211) 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, 697784071 + ... + 697957456.

It is an arithmetic number, because the mean of its divisors is an integer number (30250604007108).

Almost surely, 2^{121001020200211} is an apocalyptic number.

121001020200211 is a deficient number, since it is larger than the sum of its proper divisors (1395828221).

121001020200211 is an equidigital number, since it uses as much as digits as its factorization.

121001020200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395828220.

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

Adding to 121001020200211 its reverse (112002020100121), we get a palindrome (233003040300332).

The spelling of 121001020200211 in words is "one hundred twenty-one trillion, one billion, twenty million, two hundred thousand, two hundred eleven".