105210122 has 4 divisors (see below), whose sum is σ = 157815186. Its totient is φ = 52605060.

The previous prime is 105210103. The next prime is 105210137. The reversal of 105210122 is 221012501.

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., 96805921 + 8404201 = 9839^2 + 2899^2 .

It is a super-2 number, since 2×105210122² = 22138339542509768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105210097 and 105210106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26302529 + ... + 26302532.

Almost surely, 2^105210122 is an apocalyptic number.

105210122 is a deficient number, since it is larger than the sum of its proper divisors (52605064).

105210122 is an equidigital number, since it uses as much as digits as its factorization.

105210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52605063.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 105210122 is about 10257.1985454119. The cubic root of 105210122 is about 472.0838839948.

Adding to 105210122 its reverse (221012501), we get a palindrome (326222623).

The spelling of 105210122 in words is "one hundred five million, two hundred ten thousand, one hundred twenty-two".