121212200011122 has 96 divisors (see below), whose sum is σ = 294298262219520. Its totient is φ = 35731753378560.

The previous prime is 121212200011009. The next prime is 121212200011141. The reversal of 121212200011122 is 221110002212121.

121212200011122 is a `hidden beast` number, since 121 + 212 + 200 + 0 + 11 + 122 = 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 = 121212200011095 and 121212200011104.

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, 38933238 + ... + 41931150.

It is an arithmetic number, because the mean of its divisors is an integer number (3065606898120).

Almost surely, 2^{121212200011122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121212200011122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147149131109760).

121212200011122 is an abundant number, since it is smaller than the sum of its proper divisors (173086062208398).

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

121212200011122 is a wasteful number, since it uses less digits than its factorization.

121212200011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003488 (or 3003485 counting only the distinct ones).

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

Adding to 121212200011122 its reverse (221110002212121), we get a palindrome (342322202223243).

The spelling of 121212200011122 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred million, eleven thousand, one hundred twenty-two".