121012022010112 has 72 divisors (see below), whose sum is σ = 246120924807576. Its totient is φ = 59361490845696.

The previous prime is 121012022010109. The next prime is 121012022010169. The reversal of 121012022010112 is 211010220210121.

It can be written as a sum of positive squares in 4 ways, for example, as 5930276966656 + 115081745043456 = 2435216^2 + 10727616^2 .

It is a super-2 number, since 2×121012022010112² (a number of 29 digits) contains 22 as substring.

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, 292278508 + ... + 292692244.

It is an arithmetic number, because the mean of its divisors is an integer number (3418346177883).

Almost surely, 2^{121012022010112} 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 121012022010112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123060462403788).

121012022010112 is an abundant number, since it is smaller than the sum of its proper divisors (125108902797464).

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

121012022010112 is an equidigital number, since it uses as much as digits as its factorization.

121012022010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435363 (or 435349 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121012022010112 its reverse (211010220210121), we get a palindrome (332022242220233).

The spelling of 121012022010112 in words is "one hundred twenty-one trillion, twelve billion, twenty-two million, ten thousand, one hundred twelve".