20101021010092 has 24 divisors (see below), whose sum is σ = 38619101178000. Its totient is φ = 9078631373760.

The previous prime is 20101021010029. The next prime is 20101021010093. The reversal of 20101021010092 is 29001012010102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20101021010093) 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, 1454901967 + ... + 1454915782.

It is an arithmetic number, because the mean of its divisors is an integer number (1609129215750).

Almost surely, 2^{20101021010092} is an apocalyptic number.

20101021010092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20101021010092 is a deficient number, since it is larger than the sum of its proper divisors (18518080167908).

20101021010092 is a wasteful number, since it uses less digits than its factorization.

20101021010092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909817921 (or 2909817919 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 20101021010092 its reverse (29001012010102), we get a palindrome (49102033020194).

The spelling of 20101021010092 in words is "twenty trillion, one hundred one billion, twenty-one million, ten thousand, ninety-two".