121022110020012 has 96 divisors (see below), whose sum is σ = 306064834048512. Its totient is φ = 37070733321216.

The previous prime is 121022110020001. The next prime is 121022110020047. The reversal of 121022110020012 is 210020011220121.

It is a super-2 number, since 2×121022110020012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121022110019973 and 121022110020000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20613438 + ... + 25825530.

It is an arithmetic number, because the mean of its divisors is an integer number (3188175354672).

Almost surely, 2^{121022110020012} is an apocalyptic number.

121022110020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121022110020012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153032417024256).

121022110020012 is an abundant number, since it is smaller than the sum of its proper divisors (185042724028500).

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

121022110020012 is a wasteful number, since it uses less digits than its factorization.

121022110020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5214807 (or 5214805 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121022110020012 its reverse (210020011220121), we get a palindrome (331042121240133).

The spelling of 121022110020012 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred ten million, twenty thousand, twelve".