20101202212012 has 48 divisors (see below), whose sum is σ = 36333780215040. Its totient is φ = 9724530739392.

The previous prime is 20101202211997. The next prime is 20101202212033. The reversal of 20101202212012 is 21021220210102.

It is a happy number.

It is a super-2 number, since 2×20101202212012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 583150314 + ... + 583184782.

It is an arithmetic number, because the mean of its divisors is an integer number (756953754480).

Almost surely, 2^{20101202212012} is an apocalyptic number.

It is an amenable number.

20101202212012 is a deficient number, since it is larger than the sum of its proper divisors (16232578003028).

20101202212012 is a wasteful number, since it uses less digits than its factorization.

20101202212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66310 (or 66308 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20101202212012 its reverse (21021220210102), we get a palindrome (41122422422114).

The spelling of 20101202212012 in words is "twenty trillion, one hundred one billion, two hundred two million, two hundred twelve thousand, twelve".