10102121121 has 4 divisors (see below), whose sum is σ = 13469494832. Its totient is φ = 6734747412.

The previous prime is 10102121053. The next prime is 10102121167. The reversal of 10102121121 is 12112120101.

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 not a de Polignac number, because 10102121121 - 2¹¹ = 10102119073 is a prime.

It is a super-2 number, since 2×10102121121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10102121097 and 10102121106.

It is not an unprimeable number, because it can be changed into a prime (10102121321) 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, 1683686851 + ... + 1683686856.

It is an arithmetic number, because the mean of its divisors is an integer number (3367373708).

Almost surely, 2^10102121121 is an apocalyptic number.

It is an amenable number.

10102121121 is a deficient number, since it is larger than the sum of its proper divisors (3367373711).

10102121121 is an equidigital number, since it uses as much as digits as its factorization.

10102121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367373710.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10102121121 its reverse (12112120101), we get a palindrome (22214241222).

The spelling of 10102121121 in words is "ten billion, one hundred two million, one hundred twenty-one thousand, one hundred twenty-one".