121110010002 has 64 divisors (see below), whose sum is σ = 272675635200. Its totient is φ = 39842001360.

The previous prime is 121110009973. The next prime is 121110010031. The reversal of 121110010002 is 200010011121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121110009973) and next prime (121110010031).

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 1263649 + ... + 1356107.

It is an arithmetic number, because the mean of its divisors is an integer number (4260556800).

Almost surely, 2^121110010002 is an apocalyptic number.

121110010002 is an abundant number, since it is smaller than the sum of its proper divisors (151565625198).

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

121110010002 is a wasteful number, since it uses less digits than its factorization.

121110010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92788 (or 92782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 121110010002 its reverse (200010011121), we get a palindrome (321120021123).

The spelling of 121110010002 in words is "one hundred twenty-one billion, one hundred ten million, ten thousand, two".