121002120211 has 8 divisors (see below), whose sum is σ = 138369068640. Its totient is φ = 103655404608.

The previous prime is 121002120157. The next prime is 121002120241. The reversal of 121002120211 is 112021200121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121002120211 - 2²⁷ = 120867902483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121002120191 and 121002120200.

It is not an unprimeable number, because it can be changed into a prime (121002120241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5045386 + ... + 5069311.

It is an arithmetic number, because the mean of its divisors is an integer number (17296133580).

Almost surely, 2^121002120211 is an apocalyptic number.

121002120211 is a deficient number, since it is larger than the sum of its proper divisors (17366948429).

121002120211 is a wasteful number, since it uses less digits than its factorization.

121002120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10116413.

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

Adding to 121002120211 its reverse (112021200121), we get a palindrome (233023320332).

The spelling of 121002120211 in words is "one hundred twenty-one billion, two million, one hundred twenty thousand, two hundred eleven".