100121200020010 has 32 divisors (see below), whose sum is σ = 194087780691840. Its totient is φ = 36966554315328.

The previous prime is 100121200019957. The next prime is 100121200020043. The reversal of 100121200020010 is 10020002121001.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9471700 + ... + 17028079.

It is an arithmetic number, because the mean of its divisors is an integer number (6065243146620).

Almost surely, 2^{100121200020010} is an apocalyptic number.

100121200020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121200020010 is a deficient number, since it is larger than the sum of its proper divisors (93966580671830).

100121200020010 is a wasteful number, since it uses less digits than its factorization.

100121200020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26528862.

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

Adding to 100121200020010 its reverse (10020002121001), we get a palindrome (110141202141011).

The spelling of 100121200020010 in words is "one hundred trillion, one hundred twenty-one billion, two hundred million, twenty thousand, ten".