220120002102 has 256 divisors, whose sum is σ = 633475842048. Its totient is φ = 49115911680.

The previous prime is 220120002059. The next prime is 220120002121. The reversal of 220120002102 is 201200021022.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 5089573 + ... + 5132639.

It is an arithmetic number, because the mean of its divisors is an integer number (2474515008).

Almost surely, 2^220120002102 is an apocalyptic number.

220120002102 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 220120002102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316737921024).

220120002102 is an abundant number, since it is smaller than the sum of its proper divisors (413355839946).

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

220120002102 is a wasteful number, since it uses less digits than its factorization.

220120002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43163.

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

Adding to 220120002102 its reverse (201200021022), we get a palindrome (421320023124).

It can be divided in two parts, 2 and 20120002102, that multiplied together give a palindrome (40240004204).

The spelling of 220120002102 in words is "two hundred twenty billion, one hundred twenty million, two thousand, one hundred two".