121100220112 has 10 divisors (see below), whose sum is σ = 234631676498. Its totient is φ = 60550110048.

The previous prime is 121100220107. The next prime is 121100220119. The reversal of 121100220112 is 211022001121.

121100220112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 64057585216 + 57042634896 = 253096^2 + 238836^2 .

It is a super-2 number, since 2×121100220112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121100220092 and 121100220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100220119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3784381863 + ... + 3784381894.

Almost surely, 2^121100220112 is an apocalyptic number.

It is an amenable number.

121100220112 is a deficient number, since it is larger than the sum of its proper divisors (113531456386).

121100220112 is an equidigital number, since it uses as much as digits as its factorization.

121100220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7568763765 (or 7568763759 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121100220112 its reverse (211022001121), we get a palindrome (332122221233).

The spelling of 121100220112 in words is "one hundred twenty-one billion, one hundred million, two hundred twenty thousand, one hundred twelve".