10120002120100 has 72 divisors (see below), whose sum is σ = 22336384616000. Its totient is φ = 3978790761600.

The previous prime is 10120002120079. The next prime is 10120002120133. The reversal of 10120002120100 is 102120002101.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 7940971 + ... + 9126829.

Almost surely, 2^{10120002120100} is an apocalyptic number.

10120002120100 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 10120002120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11168192308000).

10120002120100 is an abundant number, since it is smaller than the sum of its proper divisors (12216382495900).

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

10120002120100 is a wasteful number, since it uses less digits than its factorization.

10120002120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187333 (or 1187326 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10120002120100 its reverse (102120002101), we get a palindrome (10222122122201).

The spelling of 10120002120100 in words is "ten trillion, one hundred twenty billion, two million, one hundred twenty thousand, one hundred".