100121200012210 has 32 divisors (see below), whose sum is σ = 194081560675632. Its totient is φ = 36967739074560.

The previous prime is 100121200012199. The next prime is 100121200012217. The reversal of 100121200012210 is 12210002121001.

It can be written as a sum of positive squares in 8 ways, for example, as 41552836930201 + 58568363082009 = 6446149^2 + 7652997^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (100121200012217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82168942 + ... + 83378518.

Almost surely, 2^{100121200012210} is an apocalyptic number.

100121200012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121200012210 is a deficient number, since it is larger than the sum of its proper divisors (93960360663422).

100121200012210 is a wasteful number, since it uses less digits than its factorization.

100121200012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846318.

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

Adding to 100121200012210 its reverse (12210002121001), we get a palindrome (112331202133211).

The spelling of 100121200012210 in words is "one hundred trillion, one hundred twenty-one billion, two hundred million, twelve thousand, two hundred ten".