101021200200020 has 48 divisors (see below), whose sum is σ = 213880736176128. Its totient is φ = 40077968112000.

The previous prime is 101021200200007. The next prime is 101021200200029. The reversal of 101021200200020 is 20002002120101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101021200199974 and 101021200200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021200200029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2140634 + ... + 14374446.

It is an arithmetic number, because the mean of its divisors is an integer number (4455848670336).

Almost surely, 2^{101021200200020} is an apocalyptic number.

101021200200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101021200200020 is an abundant number, since it is smaller than the sum of its proper divisors (112859535976108).

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

101021200200020 is a wasteful number, since it uses less digits than its factorization.

101021200200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12237200 (or 12237198 counting only the distinct ones).

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

Adding to 101021200200020 its reverse (20002002120101), we get a palindrome (121023202320121).

The spelling of 101021200200020 in words is "one hundred one trillion, twenty-one billion, two hundred million, two hundred thousand, twenty".