12121001012010 has 128 divisors (see below), whose sum is σ = 33934440423168. Its totient is φ = 2738193920000.

The previous prime is 12121001011997. The next prime is 12121001012011. The reversal of 12121001012010 is 1021010012121.

12121001012010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12121001012011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10129461 + ... + 11262680.

It is an arithmetic number, because the mean of its divisors is an integer number (265112815806).

Almost surely, 2^{12121001012010} is an apocalyptic number.

12121001012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121001012010 is an abundant number, since it is smaller than the sum of its proper divisors (21813439411158).

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

12121001012010 is a wasteful number, since it uses less digits than its factorization.

12121001012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21392280.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12121001012010 its reverse (1021010012121), we get a palindrome (13142011024131).

The spelling of 12121001012010 in words is "twelve trillion, one hundred twenty-one billion, one million, twelve thousand, ten".