101220202101020 has 24 divisors (see below), whose sum is σ = 216165177370800. Its totient is φ = 39801842181632.

The previous prime is 101220202101019. The next prime is 101220202101061. The reversal of 101220202101020 is 20101202022101.

It is a junction number, because it is equal to n+sod(n) for n = 101220202100986 and 101220202101004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42889914965 + ... + 42889917324.

It is an arithmetic number, because the mean of its divisors is an integer number (9006882390450).

Almost surely, 2^{101220202101020} is an apocalyptic number.

101220202101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220202101020 is an abundant number, since it is smaller than the sum of its proper divisors (114944975269780).

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

101220202101020 is a wasteful number, since it uses less digits than its factorization.

101220202101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85779832357 (or 85779832355 counting only the distinct ones).

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

Adding to 101220202101020 its reverse (20101202022101), we get a palindrome (121321404123121).

The spelling of 101220202101020 in words is "one hundred one trillion, two hundred twenty billion, two hundred two million, one hundred one thousand, twenty".