121211000102211 has 16 divisors (see below), whose sum is σ = 170206926435840. Its totient is φ = 76515514812000.

The previous prime is 121211000102209. The next prime is 121211000102293. The reversal of 121211000102211 is 112201000112121.

It is a happy number.

It is not a de Polignac number, because 121211000102211 - 2¹ = 121211000102209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121211000109211) 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, 538789915 + ... + 539014836.

It is an arithmetic number, because the mean of its divisors is an integer number (10637932902240).

Almost surely, 2^{121211000102211} is an apocalyptic number.

121211000102211 is a deficient number, since it is larger than the sum of its proper divisors (48995926333629).

121211000102211 is a wasteful number, since it uses less digits than its factorization.

121211000102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077806746.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121211000102211 its reverse (112201000112121), we get a palindrome (233412000214332).

The spelling of 121211000102211 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred two thousand, two hundred eleven".