20101202022 has 64 divisors (see below), whose sum is σ = 44826773760. Its totient is φ = 5957731200.

The previous prime is 20101202021. The next prime is 20101202027. The reversal of 20101202022 is 22020210102.

It is a junction number, because it is equal to n+sod(n) for n = 20101201989 and 20101202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101202021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 706708 + ... + 734600.

It is an arithmetic number, because the mean of its divisors is an integer number (700418340).

Almost surely, 2^20101202022 is an apocalyptic number.

20101202022 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 20101202022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22413386880).

20101202022 is an abundant number, since it is smaller than the sum of its proper divisors (24725571738).

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

20101202022 is a wasteful number, since it uses less digits than its factorization.

20101202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28149.

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

Adding to 20101202022 its reverse (22020210102), we get a palindrome (42121412124).

The spelling of 20101202022 in words is "twenty billion, one hundred one million, two hundred two thousand, twenty-two".