121210201112 has 256 divisors, whose sum is σ = 320108544000. Its totient is φ = 41474695680.

The previous prime is 121210201087. The next prime is 121210201121. The reversal of 121210201112 is 211102012121.

It is a super-2 number, since 2×121210201112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36650963 + ... + 36654269.

It is an arithmetic number, because the mean of its divisors is an integer number (1250424000).

Almost surely, 2^121210201112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121210201112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160054272000).

121210201112 is an abundant number, since it is smaller than the sum of its proper divisors (198898342888).

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

121210201112 is a wasteful number, since it uses less digits than its factorization.

121210201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566 (or 3562 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121210201112 its reverse (211102012121), we get a palindrome (332312213233).

The spelling of 121210201112 in words is "one hundred twenty-one billion, two hundred ten million, two hundred one thousand, one hundred twelve".