100121011213210 has 128 divisors (see below), whose sum is σ = 197572679539200. Its totient is φ = 36306845568000.

The previous prime is 100121011213159. The next prime is 100121011213211. The reversal of 100121011213210 is 12312110121001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100121011213211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3385539984 + ... + 3385569556.

It is an arithmetic number, because the mean of its divisors is an integer number (1543536558900).

Almost surely, 2^{100121011213210} is an apocalyptic number.

100121011213210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121011213210 is a deficient number, since it is larger than the sum of its proper divisors (97451668325990).

100121011213210 is a wasteful number, since it uses less digits than its factorization.

100121011213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31064.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 100121011213210 its reverse (12312110121001), we get a palindrome (112433121334211).

The spelling of 100121011213210 in words is "one hundred trillion, one hundred twenty-one billion, eleven million, two hundred thirteen thousand, two hundred ten".