121000120001002 has 64 divisors (see below), whose sum is σ = 210187014234624. Its totient is φ = 51631578915840.

The previous prime is 121000120000979. The next prime is 121000120001011. The reversal of 121000120001002 is 200100021000121.

It is a self number, because there is not a number n which added to its sum of digits gives 121000120001002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421852428 + ... + 422139160.

It is an arithmetic number, because the mean of its divisors is an integer number (3284172097416).

Almost surely, 2^{121000120001002} is an apocalyptic number.

121000120001002 is a deficient number, since it is larger than the sum of its proper divisors (89186894233622).

121000120001002 is a wasteful number, since it uses less digits than its factorization.

121000120001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289663.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121000120001002 its reverse (200100021000121), we get a palindrome (321100141001123).

The spelling of 121000120001002 in words is "one hundred twenty-one trillion, one hundred twenty million, one thousand, two".