10121222131 has 4 divisors (see below), whose sum is σ = 10185688672. Its totient is φ = 10056755592.

The previous prime is 10121222123. The next prime is 10121222143. The reversal of 10121222131 is 13122212101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13122212101 = 173 ⋅75850937.

It is a cyclic number.

It is not a de Polignac number, because 10121222131 - 2³ = 10121222123 is a prime.

It is a super-2 number, since 2×10121222131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121222101) 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, 32233035 + ... + 32233348.

It is an arithmetic number, because the mean of its divisors is an integer number (2546422168).

Almost surely, 2^10121222131 is an apocalyptic number.

10121222131 is a deficient number, since it is larger than the sum of its proper divisors (64466541).

10121222131 is an equidigital number, since it uses as much as digits as its factorization.

10121222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64466540.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10121222131 its reverse (13122212101), we get a palindrome (23243434232).

The spelling of 10121222131 in words is "ten billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred thirty-one".