121211102204 has 12 divisors (see below), whose sum is σ = 212406469800. Its totient is φ = 60523539408.

The previous prime is 121211102179. The next prime is 121211102219. The reversal of 121211102204 is 402201112121.

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, 20499599 + ... + 20505510.

It is an arithmetic number, because the mean of its divisors is an integer number (17700539150).

Almost surely, 2^121211102204 is an apocalyptic number.

It is an amenable number.

121211102204 is a deficient number, since it is larger than the sum of its proper divisors (91195367596).

121211102204 is a wasteful number, since it uses less digits than its factorization.

121211102204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41005852 (or 41005850 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121211102204 its reverse (402201112121), we get a palindrome (523412214325).

The spelling of 121211102204 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred two thousand, two hundred four".