101220302020020 has 48 divisors (see below), whose sum is σ = 287408632226688. Its totient is φ = 26611910389120.

The previous prime is 101220302020009. The next prime is 101220302020039. The reversal of 101220302020020 is 20020203022101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 11880312879 + ... + 11880321398.

It is an arithmetic number, because the mean of its divisors is an integer number (5987679838056).

Almost surely, 2^{101220302020020} is an apocalyptic number.

101220302020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220302020020 is an abundant number, since it is smaller than the sum of its proper divisors (186188330206668).

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

101220302020020 is a wasteful number, since it uses less digits than its factorization.

101220302020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23760634360 (or 23760634358 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 101220302020020 its reverse (20020203022101), we get a palindrome (121240505042121).

The spelling of 101220302020020 in words is "one hundred one trillion, two hundred twenty billion, three hundred two million, twenty thousand, twenty".