12021022121010 has 128 divisors (see below), whose sum is σ = 35276285030400. Its totient is φ = 2560375422720.

The previous prime is 12021022120969. The next prime is 12021022121057. The reversal of 12021022121010 is 1012122012021.

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

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 63 ways as a sum of consecutive naturals, for example, 24451590 + ... + 24938369.

It is an arithmetic number, because the mean of its divisors is an integer number (275595976800).

Almost surely, 2^{12021022121010} is an apocalyptic number.

12021022121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021022121010 is an abundant number, since it is smaller than the sum of its proper divisors (23255262909390).

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

12021022121010 is a wasteful number, since it uses less digits than its factorization.

12021022121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49390056.

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

Adding to 12021022121010 its reverse (1012122012021), we get a palindrome (13033144133031).

The spelling of 12021022121010 in words is "twelve trillion, twenty-one billion, twenty-two million, one hundred twenty-one thousand, ten".