12121012022211 has 80 divisors (see below), whose sum is σ = 19487403048960. Its totient is φ = 7483951791360.

The previous prime is 12121012022177. The next prime is 12121012022237. The reversal of 12121012022211 is 11222021012121.

12121012022211 is a `hidden beast` number, since 121 + 210 + 120 + 2 + 2 + 211 = 666.

It is not a de Polignac number, because 12121012022211 - 2¹⁰ = 12121012021187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121012022291) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 63630270 + ... + 63820476.

It is an arithmetic number, because the mean of its divisors is an integer number (243592538112).

Almost surely, 2^{12121012022211} is an apocalyptic number.

12121012022211 is a deficient number, since it is larger than the sum of its proper divisors (7366391026749).

12121012022211 is a wasteful number, since it uses less digits than its factorization.

12121012022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191166 (or 191157 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12121012022211 its reverse (11222021012121), we get a palindrome (23343033034332).

The spelling of 12121012022211 in words is "twelve trillion, one hundred twenty-one billion, twelve million, twenty-two thousand, two hundred eleven".