121111111021022 has 16 divisors (see below), whose sum is σ = 181734950754000. Its totient is φ = 60532797126720.

The previous prime is 121111111021003. The next prime is 121111111021049. The reversal of 121111111021022 is 220120111111121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80172104 + ... + 81668772.

It is an arithmetic number, because the mean of its divisors is an integer number (11358434422125).

Almost surely, 2^{121111111021022} is an apocalyptic number.

121111111021022 is a deficient number, since it is larger than the sum of its proper divisors (60623839732978).

121111111021022 is a wasteful number, since it uses less digits than its factorization.

121111111021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511851.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121111111021022 its reverse (220120111111121), we get a palindrome (341231222132143).

Subtracting 121111111021022 from its reverse (220120111111121), we obtain a palindrome (99009000090099).

The spelling of 121111111021022 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred eleven million, twenty-one thousand, twenty-two".