10111010100121 has 4 divisors (see below), whose sum is σ = 11555440114432. Its totient is φ = 8666580085812.

The previous prime is 10111010100077. The next prime is 10111010100167. The reversal of 10111010100121 is 12100101011101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10111010100121 - 2¹⁹ = 10111009575833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111010100098 and 10111010100107.

It is not an unprimeable number, because it can be changed into a prime (10111010101121) 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, 722215007145 + ... + 722215007158.

It is an arithmetic number, because the mean of its divisors is an integer number (2888860028608).

Almost surely, 2^{10111010100121} is an apocalyptic number.

It is an amenable number.

10111010100121 is a deficient number, since it is larger than the sum of its proper divisors (1444430014311).

10111010100121 is an equidigital number, since it uses as much as digits as its factorization.

10111010100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444430014310.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 10111010100121 its reverse (12100101011101), we get a palindrome (22211111111222).

The spelling of 10111010100121 in words is "ten trillion, one hundred eleven billion, ten million, one hundred thousand, one hundred twenty-one".