121100133222 has 48 divisors (see below), whose sum is σ = 269832934800. Its totient is φ = 39234901056.

The previous prime is 121100133221. The next prime is 121100133239. The reversal of 121100133222 is 222331001121.

It is a super-2 number, since 2×121100133222² (a number of 23 digits) contains 22 as substring.

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 = 121100133195 and 121100133204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100133221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 491097 + ... + 695252.

It is an arithmetic number, because the mean of its divisors is an integer number (5621519475).

Almost surely, 2^121100133222 is an apocalyptic number.

121100133222 is an abundant number, since it is smaller than the sum of its proper divisors (148732801578).

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

121100133222 is a wasteful number, since it uses less digits than its factorization.

121100133222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186517 (or 1186514 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121100133222 its reverse (222331001121), we get a palindrome (343431134343).

The spelling of 121100133222 in words is "one hundred twenty-one billion, one hundred million, one hundred thirty-three thousand, two hundred twenty-two".