121111221002 has 8 divisors (see below), whose sum is σ = 181668362976. Its totient is φ = 60555100012.

The previous prime is 121111220987. The next prime is 121111221019. The reversal of 121111221002 is 200122111121.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 213413 + ... + 536439.

It is an arithmetic number, because the mean of its divisors is an integer number (22708545372).

Almost surely, 2^121111221002 is an apocalyptic number.

121111221002 is a deficient number, since it is larger than the sum of its proper divisors (60557141974).

121111221002 is a wasteful number, since it uses less digits than its factorization.

121111221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510492.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121111221002 its reverse (200122111121), we get a palindrome (321233332123).

The spelling of 121111221002 in words is "one hundred twenty-one billion, one hundred eleven million, two hundred twenty-one thousand, two".