20101211001112 has 32 divisors (see below), whose sum is σ = 39920017838400. Its totient is φ = 9456264077824.

The previous prime is 20101211001073. The next prime is 20101211001119. The reversal of 20101211001112 is 21110011210102.

It is a happy number.

It is a super-2 number, since 2×20101211001112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20101211001092 and 20101211001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101211001119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24035287 + ... + 24857542.

It is an arithmetic number, because the mean of its divisors is an integer number (1247500557450).

Almost surely, 2^{20101211001112} is an apocalyptic number.

It is an amenable number.

20101211001112 is a deficient number, since it is larger than the sum of its proper divisors (19818806837288).

20101211001112 is a wasteful number, since it uses less digits than its factorization.

20101211001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48895875 (or 48895871 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20101211001112 its reverse (21110011210102), we get a palindrome (41211222211214).

The spelling of 20101211001112 in words is "twenty trillion, one hundred one billion, two hundred eleven million, one thousand, one hundred twelve".