20121002110002 has 32 divisors (see below), whose sum is σ = 40257666828288. Its totient is φ = 6704390702096.

The previous prime is 20121002109979. The next prime is 20121002110003. The reversal of 20121002110002 is 20001120012102.

It is a super-2 number, since 2×20121002110002² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20121002110002.

It is not an unprimeable number, because it can be changed into a prime (20121002110003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211745833 + ... + 211840835.

It is an arithmetic number, because the mean of its divisors is an integer number (1258052088384).

Almost surely, 2^{20121002110002} is an apocalyptic number.

20121002110002 is an abundant number, since it is smaller than the sum of its proper divisors (20136664718286).

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

20121002110002 is a wasteful number, since it uses less digits than its factorization.

20121002110002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108374.

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

Adding to 20121002110002 its reverse (20001120012102), we get a palindrome (40122122122104).

The spelling of 20121002110002 in words is "twenty trillion, one hundred twenty-one billion, two million, one hundred ten thousand, two".