121102011021222 has 288 divisors, whose sum is σ = 339586804196640. Its totient is φ = 30831565040640.

The previous prime is 121102011021209. The next prime is 121102011021241. The reversal of 121102011021222 is 222120110201121.

121102011021222 is a `hidden beast` number, since 1 + 211 + 0 + 201 + 10 + 21 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 121102011021195 and 121102011021204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 531060804 + ... + 531288792.

It is an arithmetic number, because the mean of its divisors is an integer number (1179120847905).

Almost surely, 2^{121102011021222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121102011021222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169793402098320).

121102011021222 is an abundant number, since it is smaller than the sum of its proper divisors (218484793175418).

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

121102011021222 is a wasteful number, since it uses less digits than its factorization.

121102011021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229108 (or 229098 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121102011021222 its reverse (222120110201121), we get a palindrome (343222121222343).

The spelling of 121102011021222 in words is "one hundred twenty-one trillion, one hundred two billion, eleven million, twenty-one thousand, two hundred twenty-two".