121220122002003 has 24 divisors (see below), whose sum is σ = 178105564681200. Its totient is φ = 79424908847424.

The previous prime is 121220122001999. The next prime is 121220122002061. The reversal of 121220122002003 is 300200221022121.

121220122002003 is a `hidden beast` number, since 1 + 21 + 220 + 1 + 220 + 0 + 200 + 3 = 666.

It is not a de Polignac number, because 121220122002003 - 2² = 121220122001999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121220122002503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24745000 + ... + 29236197.

It is an arithmetic number, because the mean of its divisors is an integer number (7421065195050).

Almost surely, 2^{121220122002003} is an apocalyptic number.

121220122002003 is a deficient number, since it is larger than the sum of its proper divisors (56885442679197).

121220122002003 is a wasteful number, since it uses less digits than its factorization.

121220122002003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53985491 (or 53985488 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121220122002003 its reverse (300200221022121), we get a palindrome (421420343024124).

The spelling of 121220122002003 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty-two million, two thousand, three".