101120220121220 has 24 divisors (see below), whose sum is σ = 212362299303000. Its totient is φ = 40446214324992.

The previous prime is 101120220121199. The next prime is 101120220121223. The reversal of 101120220121220 is 22121022021101.

It can be written as a sum of positive squares in 4 ways, for example, as 176885854084 + 100943334267136 = 420578^2 + 10047056^2 .

It is not an unprimeable number, because it can be changed into a prime (101120220121223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116665145 + ... + 117528704.

It is an arithmetic number, because the mean of its divisors is an integer number (8848429137625).

Almost surely, 2^{101120220121220} is an apocalyptic number.

101120220121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101120220121220 is an abundant number, since it is smaller than the sum of its proper divisors (111242079181780).

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

101120220121220 is a wasteful number, since it uses less digits than its factorization.

101120220121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234215447 (or 234215445 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101120220121220 its reverse (22121022021101), we get a palindrome (123241242142321).

The spelling of 101120220121220 in words is "one hundred one trillion, one hundred twenty billion, two hundred twenty million, one hundred twenty-one thousand, two hundred twenty".