121002101211 has 16 divisors (see below), whose sum is σ = 162689536800. Its totient is φ = 79993171200.

The previous prime is 121002101191. The next prime is 121002101243. The reversal of 121002101211 is 112101200121.

It is not a de Polignac number, because 121002101211 - 2¹⁵ = 121002068443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121002101251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43441 + ... + 493853.

It is an arithmetic number, because the mean of its divisors is an integer number (10168096050).

Almost surely, 2^121002101211 is an apocalyptic number.

121002101211 is a deficient number, since it is larger than the sum of its proper divisors (41687435589).

121002101211 is a wasteful number, since it uses less digits than its factorization.

121002101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451166.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121002101211 its reverse (112101200121), we get a palindrome (233103301332).

The spelling of 121002101211 in words is "one hundred twenty-one billion, two million, one hundred one thousand, two hundred eleven".