101002121220220 has 48 divisors (see below), whose sum is σ = 235179901960416. Its totient is φ = 36125944992000.

The previous prime is 101002121220191. The next prime is 101002121220317. The reversal of 101002121220220 is 22022121200101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101002121220194 and 101002121220203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3763105851 + ... + 3763132690.

It is an arithmetic number, because the mean of its divisors is an integer number (4899581290842).

Almost surely, 2^{101002121220220} is an apocalyptic number.

101002121220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101002121220220 is an abundant number, since it is smaller than the sum of its proper divisors (134177780740196).

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

101002121220220 is a wasteful number, since it uses less digits than its factorization.

101002121220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526238622 (or 7526238620 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101002121220220 its reverse (22022121200101), we get a palindrome (123024242420321).

The spelling of 101002121220220 in words is "one hundred one trillion, two billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty".