100020121200010 has 48 divisors (see below), whose sum is σ = 197287838943840. Its totient is φ = 36207852738720.

The previous prime is 100020121199983. The next prime is 100020121200047. The reversal of 100020121200010 is 10002121020001.

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

It is a self number, because there is not a number n which added to its sum of digits gives 100020121200010.

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, 3672100 + ... + 14612479.

It is an arithmetic number, because the mean of its divisors is an integer number (4110163311330).

Almost surely, 2^{100020121200010} is an apocalyptic number.

100020121200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100020121200010 is a deficient number, since it is larger than the sum of its proper divisors (97267717743830).

100020121200010 is a wasteful number, since it uses less digits than its factorization.

100020121200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18285043 (or 18284820 counting only the distinct ones).

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

Adding to 100020121200010 its reverse (10002121020001), we get a palindrome (110022242220011).

The spelling of 100020121200010 in words is "one hundred trillion, twenty billion, one hundred twenty-one million, two hundred thousand, ten".