121020202122222 has 128 divisors (see below), whose sum is σ = 265560254991360. Its totient is φ = 36541244805120.

The previous prime is 121020202122187. The next prime is 121020202122229. The reversal of 121020202122222 is 222221202020121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020202122229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1901934304 + ... + 1901997932.

It is an arithmetic number, because the mean of its divisors is an integer number (2074689492120).

Almost surely, 2^{121020202122222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121020202122222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132780127495680).

121020202122222 is an abundant number, since it is smaller than the sum of its proper divisors (144540052869138).

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

121020202122222 is a wasteful number, since it uses less digits than its factorization.

121020202122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65098.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121020202122222 its reverse (222221202020121), we get a palindrome (343241404142343).

The spelling of 121020202122222 in words is "one hundred twenty-one trillion, twenty billion, two hundred two million, one hundred twenty-two thousand, two hundred twenty-two".