121010220012 has 96 divisors (see below), whose sum is σ = 343310849280. Its totient is φ = 32696248320.

The previous prime is 121010219989. The next prime is 121010220017. The reversal of 121010220012 is 210022010121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 121010220012.

It is not an unprimeable number, because it can be changed into a prime (121010220017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1376473 + ... + 1461744.

It is an arithmetic number, because the mean of its divisors is an integer number (3576154680).

Almost surely, 2^121010220012 is an apocalyptic number.

121010220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121010220012 is an abundant number, since it is smaller than the sum of its proper divisors (222300629268).

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

121010220012 is a wasteful number, since it uses less digits than its factorization.

121010220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838271 (or 2838269 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121010220012 its reverse (210022010121), we get a palindrome (331032230133).

The spelling of 121010220012 in words is "one hundred twenty-one billion, ten million, two hundred twenty thousand, twelve".