101120220020 has 12 divisors (see below), whose sum is σ = 212352462084. Its totient is φ = 40448088000.

The previous prime is 101120219999. The next prime is 101120220037. The reversal of 101120220020 is 20022021101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54185597284 + 46934622736 = 232778^2 + 216644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101120219983 and 101120220010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528005481 + ... + 2528005520.

It is an arithmetic number, because the mean of its divisors is an integer number (17696038507).

Almost surely, 2^101120220020 is an apocalyptic number.

101120220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101120220020 is an abundant number, since it is smaller than the sum of its proper divisors (111232242064).

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

101120220020 is a wasteful number, since it uses less digits than its factorization.

101120220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056011010 (or 5056011008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 101120220020 its reverse (20022021101), we get a palindrome (121142241121).

The spelling of 101120220020 in words is "one hundred one billion, one hundred twenty million, two hundred twenty thousand, twenty".