121001221102 has 16 divisors (see below), whose sum is σ = 187902810432. Its totient is φ = 58402218240.

The previous prime is 121001221087. The next prime is 121001221139. The reversal of 121001221102 is 201122100121.

It is a congruent number.

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, 8809899 + ... + 8823622.

It is an arithmetic number, because the mean of its divisors is an integer number (11743925652).

Almost surely, 2^121001221102 is an apocalyptic number.

121001221102 is a deficient number, since it is larger than the sum of its proper divisors (66901589330).

121001221102 is a wasteful number, since it uses less digits than its factorization.

121001221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17633643.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121001221102 its reverse (201122100121), we get a palindrome (322123321223).

The spelling of 121001221102 in words is "one hundred twenty-one billion, one million, two hundred twenty-one thousand, one hundred two".