121022201121111 has 24 divisors (see below), whose sum is σ = 175531635062784. Its totient is φ = 80348790704400.

The previous prime is 121022201121109. The next prime is 121022201121197. The reversal of 121022201121111 is 111121102220121.

It is a happy number.

121022201121111 is a `hidden beast` number, since 1 + 210 + 2 + 220 + 1 + 121 + 111 = 666.

It is not a de Polignac number, because 121022201121111 - 2¹ = 121022201121109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022201121511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15847161 + ... + 22207586.

It is an arithmetic number, because the mean of its divisors is an integer number (7313818127616).

Almost surely, 2^{121022201121111} is an apocalyptic number.

121022201121111 is a deficient number, since it is larger than the sum of its proper divisors (54509433941673).

121022201121111 is a wasteful number, since it uses less digits than its factorization.

121022201121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38056211 (or 38056208 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121022201121111 its reverse (111121102220121), we get a palindrome (232143303341232).

The spelling of 121022201121111 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred one million, one hundred twenty-one thousand, one hundred eleven".