10001121210111 has 8 divisors (see below), whose sum is σ = 13336214619520. Its totient is φ = 6666720970392.

The previous prime is 10001121210071. The next prime is 10001121210151. The reversal of 10001121210111 is 11101212110001.

It is an interprime number because it is at equal distance from previous prime (10001121210071) and next prime (10001121210151).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10001121210111 - 2¹⁹ = 10001120685823 is a prime.

It is a super-2 number, since 2×10001121210111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001121210151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173258755 + ... + 173316468.

It is an arithmetic number, because the mean of its divisors is an integer number (1667026827440).

Almost surely, 2^{10001121210111} is an apocalyptic number.

10001121210111 is a deficient number, since it is larger than the sum of its proper divisors (3335093409409).

10001121210111 is an equidigital number, since it uses as much as digits as its factorization.

10001121210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346584845.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 10001121210111 its reverse (11101212110001), we get a palindrome (21102333320112).

The spelling of 10001121210111 in words is "ten trillion, one billion, one hundred twenty-one million, two hundred ten thousand, one hundred eleven".