20101101021012 has 24 divisors (see below), whose sum is σ = 51166438962912. Its totient is φ = 6091242733600.

The previous prime is 20101101020981. The next prime is 20101101021013. The reversal of 20101101021012 is 21012010110102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101101021013) 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, 76140534039 + ... + 76140534302.

It is an arithmetic number, because the mean of its divisors is an integer number (2131934956788).

Almost surely, 2^{20101101021012} is an apocalyptic number.

20101101021012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20101101021012 is an abundant number, since it is smaller than the sum of its proper divisors (31065337941900).

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

20101101021012 is a wasteful number, since it uses less digits than its factorization.

20101101021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152281068359 (or 152281068357 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20101101021012 its reverse (21012010110102), we get a palindrome (41113111131114).

The spelling of 20101101021012 in words is "twenty trillion, one hundred one billion, one hundred one million, twenty-one thousand, twelve".