100031210122 has 4 divisors (see below), whose sum is σ = 150046815186. Its totient is φ = 50015605060.

The previous prime is 100031210107. The next prime is 100031210129. The reversal of 100031210122 is 221012130001.

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

It can be written as a sum of positive squares in only one way, i.e., 58230998721 + 41800211401 = 241311^2 + 204451^2 .

It is not an unprimeable number, because it can be changed into a prime (100031210129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25007802529 + ... + 25007802532.

Almost surely, 2^100031210122 is an apocalyptic number.

100031210122 is a deficient number, since it is larger than the sum of its proper divisors (50015605064).

100031210122 is an equidigital number, since it uses as much as digits as its factorization.

100031210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50015605063.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100031210122 its reverse (221012130001), we get a palindrome (321043340123).

The spelling of 100031210122 in words is "one hundred billion, thirty-one million, two hundred ten thousand, one hundred twenty-two".