121202001211 has 24 divisors (see below), whose sum is σ = 131670805392. Its totient is φ = 111177830400.

The previous prime is 121202001203. The next prime is 121202001241. The reversal of 121202001211 is 112100202121.

It is not a de Polignac number, because 121202001211 - 2³ = 121202001203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121202001191 and 121202001200.

It is not an unprimeable number, because it can be changed into a prime (121202001241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44378716 + ... + 44381446.

It is an arithmetic number, because the mean of its divisors is an integer number (5486283558).

Almost surely, 2^121202001211 is an apocalyptic number.

121202001211 is a deficient number, since it is larger than the sum of its proper divisors (10468804181).

121202001211 is a wasteful number, since it uses less digits than its factorization.

121202001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383 (or 4342 counting only the distinct ones).

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

Adding to 121202001211 its reverse (112100202121), we get a palindrome (233302203332).

The spelling of 121202001211 in words is "one hundred twenty-one billion, two hundred two million, one thousand, two hundred eleven".