121221021201002 has 16 divisors (see below), whose sum is σ = 184917333391200. Its totient is φ = 59581953528720.

The previous prime is 121221021200969. The next prime is 121221021201043. The reversal of 121221021201002 is 200102120122121.

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, 5249852 + ... + 16431767.

It is an arithmetic number, because the mean of its divisors is an integer number (11557333336950).

Almost surely, 2^{121221021201002} is an apocalyptic number.

121221021201002 is a deficient number, since it is larger than the sum of its proper divisors (63696312190198).

121221021201002 is a wasteful number, since it uses less digits than its factorization.

121221021201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21729061.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121221021201002 its reverse (200102120122121), we get a palindrome (321323141323123).

The spelling of 121221021201002 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty-one million, two hundred one thousand, two".