121012121210122 has 16 divisors (see below), whose sum is σ = 184189751146944. Its totient is φ = 59616602080000.

The previous prime is 121012121210093. The next prime is 121012121210237. The reversal of 121012121210122 is 221012121210121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121012121210122.

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, 265918204 + ... + 266372887.

It is an arithmetic number, because the mean of its divisors is an integer number (11511859446684).

Almost surely, 2^{121012121210122} is an apocalyptic number.

121012121210122 is a deficient number, since it is larger than the sum of its proper divisors (63177629936822).

121012121210122 is a wasteful number, since it uses less digits than its factorization.

121012121210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532292765.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121012121210122 its reverse (221012121210121), we get a palindrome (342024242420243).

Subtracting 121012121210122 from its reverse (221012121210121), we obtain a palindrome (99999999999999).

The spelling of 121012121210122 in words is "one hundred twenty-one trillion, twelve billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".