101002122120100 has 72 divisors (see below), whose sum is σ = 220782959486208. Its totient is φ = 40104400800000.

The previous prime is 101002122120079. The next prime is 101002122120131. The reversal of 101002122120100 is 1021221200101.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393760489 + ... + 394016911.

It is an arithmetic number, because the mean of its divisors is an integer number (3066429992864).

Almost surely, 2^{101002122120100} is an apocalyptic number.

101002122120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101002122120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110391479743104).

101002122120100 is an abundant number, since it is smaller than the sum of its proper divisors (119780837366108).

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

101002122120100 is a wasteful number, since it uses less digits than its factorization.

101002122120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285325 (or 285318 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101002122120100 its reverse (1021221200101), we get a palindrome (102023343320201).

The spelling of 101002122120100 in words is "one hundred one trillion, two billion, one hundred twenty-two million, one hundred twenty thousand, one hundred".