121220002021002 has 16 divisors (see below), whose sum is σ = 245164049032320. Its totient is φ = 39952659841952.

The previous prime is 121220002020959. The next prime is 121220002021031. The reversal of 121220002021002 is 200120200022121.

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, 113501874018 + ... + 113501875085.

It is an arithmetic number, because the mean of its divisors is an integer number (15322753064520).

Almost surely, 2^{121220002021002} is an apocalyptic number.

121220002021002 is an abundant number, since it is smaller than the sum of its proper divisors (123944047011318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121220002021002 is a wasteful number, since it uses less digits than its factorization.

121220002021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227003749197.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121220002021002 its reverse (200120200022121), we get a palindrome (321340202043123).

The spelling of 121220002021002 in words is "one hundred twenty-one trillion, two hundred twenty billion, two million, twenty-one thousand, two".