102020121100220 has 24 divisors (see below), whose sum is σ = 223557134933664. Its totient is φ = 39033785464256.

The previous prime is 102020121100207. The next prime is 102020121100229. The reversal of 102020121100220 is 22001121020201.

102020121100220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 102020121100195 and 102020121100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020121100229) 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, 110891435519 + ... + 110891436438.

It is an arithmetic number, because the mean of its divisors is an integer number (9314880622236).

Almost surely, 2^{102020121100220} is an apocalyptic number.

102020121100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020121100220 is an abundant number, since it is smaller than the sum of its proper divisors (121537013833444).

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

102020121100220 is a wasteful number, since it uses less digits than its factorization.

102020121100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221782871989 (or 221782871987 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102020121100220 its reverse (22001121020201), we get a palindrome (124021242120421).

The spelling of 102020121100220 in words is "one hundred two trillion, twenty billion, one hundred twenty-one million, one hundred thousand, two hundred twenty".