121011011220112 has 40 divisors (see below), whose sum is σ = 253123790524920. Its totient is φ = 55711956019200.

The previous prime is 121011011220107. The next prime is 121011011220133. The reversal of 121011011220112 is 211022110110121.

It can be written as a sum of positive squares in 4 ways, for example, as 17142382192896 + 103868629027216 = 4140336^2 + 10191596^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725332687 + ... + 725499502.

It is an arithmetic number, because the mean of its divisors is an integer number (6328094763123).

Almost surely, 2^{121011011220112} is an apocalyptic number.

It is an amenable number.

121011011220112 is an abundant number, since it is smaller than the sum of its proper divisors (132112779304808).

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

121011011220112 is a wasteful number, since it uses less digits than its factorization.

121011011220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450832611 (or 1450832605 counting only the distinct ones).

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

Adding to 121011011220112 its reverse (211022110110121), we get a palindrome (332033121330233).

The spelling of 121011011220112 in words is "one hundred twenty-one trillion, eleven billion, eleven million, two hundred twenty thousand, one hundred twelve".