121022010210204 has 144 divisors (see below), whose sum is σ = 323233753489920. Its totient is φ = 39585668578560.

The previous prime is 121022010210187. The next prime is 121022010210221. The reversal of 121022010210204 is 402012010220121.

121022010210204 is a `hidden beast` number, since 1 + 21 + 0 + 220 + 10 + 210 + 204 = 666.

It is an interprime number because it is at equal distance from previous prime (121022010210187) and next prime (121022010210221).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7681924 + ... + 17350964.

It is an arithmetic number, because the mean of its divisors is an integer number (2244678843680).

Almost surely, 2^{121022010210204} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121022010210204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161616876744960).

121022010210204 is an abundant number, since it is smaller than the sum of its proper divisors (202211743279716).

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

121022010210204 is a wasteful number, since it uses less digits than its factorization.

121022010210204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9669302 (or 9669288 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121022010210204 its reverse (402012010220121), we get a palindrome (523034020430325).

The spelling of 121022010210204 in words is "one hundred twenty-one trillion, twenty-two billion, ten million, two hundred ten thousand, two hundred four".