121001142004 has 12 divisors (see below), whose sum is σ = 211822345728. Its totient is φ = 60480471800.

The previous prime is 121001141993. The next prime is 121001142049. The reversal of 121001142004 is 400241100121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5011252 + ... + 5035339.

It is an arithmetic number, because the mean of its divisors is an integer number (17651862144).

Almost surely, 2^121001142004 is an apocalyptic number.

It is an amenable number.

121001142004 is a deficient number, since it is larger than the sum of its proper divisors (90821203724).

121001142004 is a wasteful number, since it uses less digits than its factorization.

121001142004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10049606 (or 10049604 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121001142004 its reverse (400241100121), we get a palindrome (521242242125).

The spelling of 121001142004 in words is "one hundred twenty-one billion, one million, one hundred forty-two thousand, four".