20010121102212 has 24 divisors (see below), whose sum is σ = 46691306258016. Its totient is φ = 6669894126528.

The previous prime is 20010121102133. The next prime is 20010121102217. The reversal of 20010121102212 is 21220112101002.

It is a junction number, because it is equal to n+sod(n) for n = 20010121102191 and 20010121102200.

It is not an unprimeable number, because it can be changed into a prime (20010121102217) 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 7 ways as a sum of consecutive naturals, for example, 17709273 + ... + 18805280.

It is an arithmetic number, because the mean of its divisors is an integer number (1945471094084).

Almost surely, 2^{20010121102212} is an apocalyptic number.

It is an amenable number.

20010121102212 is an abundant number, since it is smaller than the sum of its proper divisors (26681185155804).

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

20010121102212 is a wasteful number, since it uses less digits than its factorization.

20010121102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36560227 (or 36560225 counting only the distinct ones).

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

Adding to 20010121102212 its reverse (21220112101002), we get a palindrome (41230233203214).

The spelling of 20010121102212 in words is "twenty trillion, ten billion, one hundred twenty-one million, one hundred two thousand, two hundred twelve".