10100121211 has 4 divisors (see below), whose sum is σ = 10137668400. Its totient is φ = 10062574024.

The previous prime is 10100121193. The next prime is 10100121271. The reversal of 10100121211 is 11212100101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10100121211 - 2¹⁵ = 10100088443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10100121271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18773191 + ... + 18773728.

It is an arithmetic number, because the mean of its divisors is an integer number (2534417100).

Almost surely, 2^10100121211 is an apocalyptic number.

10100121211 is a deficient number, since it is larger than the sum of its proper divisors (37547189).

10100121211 is an equidigital number, since it uses as much as digits as its factorization.

10100121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37547188.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10100121211 its reverse (11212100101), we get a palindrome (21312221312).

The spelling of 10100121211 in words is "ten billion, one hundred million, one hundred twenty-one thousand, two hundred eleven".