20010002121112 has 16 divisors (see below), whose sum is σ = 37537712447400. Its totient is φ = 9999945468480.

The previous prime is 20010002121097. The next prime is 20010002121119. The reversal of 20010002121112 is 21112120001002.

It is a super-2 number, since 2×20010002121112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20010002121092 and 20010002121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010002121119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631932189 + ... + 631963852.

Almost surely, 2^{20010002121112} is an apocalyptic number.

It is an amenable number.

20010002121112 is a deficient number, since it is larger than the sum of its proper divisors (17527710326288).

20010002121112 is a wasteful number, since it uses less digits than its factorization.

20010002121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263898026 (or 1263898022 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20010002121112 its reverse (21112120001002), we get a palindrome (41122122122114).

The spelling of 20010002121112 in words is "twenty trillion, ten billion, two million, one hundred twenty-one thousand, one hundred twelve".