12012121022010 has 32 divisors (see below), whose sum is σ = 28832002900992. Its totient is φ = 3202908667200.

The previous prime is 12012121021997. The next prime is 12012121022089. The reversal of 12012121022010 is 1022012121021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19923354 + ... + 20517413.

It is an arithmetic number, because the mean of its divisors is an integer number (901000090656).

Almost surely, 2^{12012121022010} is an apocalyptic number.

12012121022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012121022010 is an abundant number, since it is smaller than the sum of its proper divisors (16819881878982).

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

12012121022010 is a wasteful number, since it uses less digits than its factorization.

12012121022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40450678.

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

Adding to 12012121022010 its reverse (1022012121021), we get a palindrome (13034133143031).

It can be divided in two parts, 1201212 and 1022010, that added together give a palindrome (2223222).

The spelling of 12012121022010 in words is "twelve trillion, twelve billion, one hundred twenty-one million, twenty-two thousand, ten".