121220002020122 has 16 divisors (see below), whose sum is σ = 184644550252800. Its totient is φ = 59676092782800.

The previous prime is 121220002020119. The next prime is 121220002020199. The reversal of 121220002020122 is 221020200022121.

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 121220002020122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068488129 + ... + 1068601572.

It is an arithmetic number, because the mean of its divisors is an integer number (11540284390800).

Almost surely, 2^{121220002020122} is an apocalyptic number.

121220002020122 is a deficient number, since it is larger than the sum of its proper divisors (63424548232678).

121220002020122 is a wasteful number, since it uses less digits than its factorization.

121220002020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137090141.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121220002020122 its reverse (221020200022121), we get a palindrome (342240202042243).

The spelling of 121220002020122 in words is "one hundred twenty-one trillion, two hundred twenty billion, two million, twenty thousand, one hundred twenty-two".