121200120022002 has 16 divisors (see below), whose sum is σ = 277028845764672. Its totient is φ = 34628605720560.

The previous prime is 121200120021977. The next prime is 121200120022081. The reversal of 121200120022002 is 200220021002121.

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, 1442858571649 + ... + 1442858571732.

It is an arithmetic number, because the mean of its divisors is an integer number (17314302860292).

Almost surely, 2^{121200120022002} is an apocalyptic number.

121200120022002 is an abundant number, since it is smaller than the sum of its proper divisors (155828725742670).

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

121200120022002 is a wasteful number, since it uses less digits than its factorization.

121200120022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885717143393.

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

Adding to 121200120022002 its reverse (200220021002121), we get a palindrome (321420141024123).

The spelling of 121200120022002 in words is "one hundred twenty-one trillion, two hundred billion, one hundred twenty million, twenty-two thousand, two".