121121210210122 has 32 divisors (see below), whose sum is σ = 186010252331904. Its totient is φ = 59133478593600.

The previous prime is 121121210210107. The next prime is 121121210210153. The reversal of 121121210210122 is 221012012121121.

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 121121210210122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7560883 + ... + 17303449.

It is an arithmetic number, because the mean of its divisors is an integer number (5812820385372).

Almost surely, 2^{121121210210122} is an apocalyptic number.

121121210210122 is a deficient number, since it is larger than the sum of its proper divisors (64889042121782).

121121210210122 is a wasteful number, since it uses less digits than its factorization.

121121210210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9743374.

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

Adding to 121121210210122 its reverse (221012012121121), we get a palindrome (342133222331243).

The spelling of 121121210210122 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred ten million, two hundred ten thousand, one hundred twenty-two".