100121211211010 has 32 divisors (see below), whose sum is σ = 196609412376000. Its totient is φ = 36406275895360.

The previous prime is 100121211210997. The next prime is 100121211211013. The reversal of 100121211211010 is 10112112121001.

It is not an unprimeable number, because it can be changed into a prime (100121211211013) 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, 15164840 + ... + 20741619.

It is an arithmetic number, because the mean of its divisors is an integer number (6144044136750).

Almost surely, 2^{100121211211010} is an apocalyptic number.

100121211211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121211211010 is a deficient number, since it is larger than the sum of its proper divisors (96488201164990).

100121211211010 is a wasteful number, since it uses less digits than its factorization.

100121211211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35931826.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100121211211010 its reverse (10112112121001), we get a palindrome (110233323332011).

Subtracting from 100121211211010 its reverse (10112112121001), we obtain a palindrome (90009099090009).

The spelling of 100121211211010 in words is "one hundred trillion, one hundred twenty-one billion, two hundred eleven million, two hundred eleven thousand, ten".