121111221004 has 12 divisors (see below), whose sum is σ = 214326037800. Its totient is φ = 59875210208.

The previous prime is 121111220987. The next prime is 121111221019. The reversal of 121111221004 is 400122111121.

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, 170099674 + ... + 170100385.

It is an arithmetic number, because the mean of its divisors is an integer number (17860503150).

Almost surely, 2^121111221004 is an apocalyptic number.

It is an amenable number.

121111221004 is a deficient number, since it is larger than the sum of its proper divisors (93214816796).

121111221004 is a wasteful number, since it uses less digits than its factorization.

121111221004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340200152 (or 340200150 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121111221004 its reverse (400122111121), we get a palindrome (521233332125).

The spelling of 121111221004 in words is "one hundred twenty-one billion, one hundred eleven million, two hundred twenty-one thousand, four".