20101222000002 has 128 divisors (see below), whose sum is σ = 48360007342080. Its totient is φ = 5489780567040.

The previous prime is 20101221999983. The next prime is 20101222000009. The reversal of 20101222000002 is 20000022210102.

It is not an unprimeable number, because it can be changed into a prime (20101222000009) 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 63 ways as a sum of consecutive naturals, for example, 4948699 + ... + 8043137.

It is an arithmetic number, because the mean of its divisors is an integer number (377812557360).

Almost surely, 2^{20101222000002} is an apocalyptic number.

20101222000002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20101222000002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24180003671040).

20101222000002 is an abundant number, since it is smaller than the sum of its proper divisors (28258785342078).

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

20101222000002 is a wasteful number, since it uses less digits than its factorization.

20101222000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094648.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20101222000002 its reverse (20000022210102), we get a palindrome (40101244210104).

The spelling of 20101222000002 in words is "twenty trillion, one hundred one billion, two hundred twenty-two million, two", and thus it is an aban number.