121001020011222 has 192 divisors, whose sum is σ = 265563158031360. Its totient is φ = 36536467968000.

The previous prime is 121001020011181. The next prime is 121001020011233. The reversal of 121001020011222 is 222110020100121.

It is a super-2 number, since 2×121001020011222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 100750224222 + ... + 100750225422.

It is an arithmetic number, because the mean of its divisors is an integer number (1383141448080).

Almost surely, 2^{121001020011222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121001020011222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132781579015680).

121001020011222 is an abundant number, since it is smaller than the sum of its proper divisors (144562138020138).

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

121001020011222 is a wasteful number, since it uses less digits than its factorization.

121001020011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121001020011222 its reverse (222110020100121), we get a palindrome (343111040111343).

The spelling of 121001020011222 in words is "one hundred twenty-one trillion, one billion, twenty million, eleven thousand, two hundred twenty-two".