106212407290 has 24 divisors (see below), whose sum is σ = 210142566900. Its totient is φ = 38622693120.

The previous prime is 106212407239. The next prime is 106212407317. The reversal of 106212407290 is 92704212601.

It can be written as a sum of positive squares in 2 ways, for example, as 96039869409 + 10172537881 = 309903^2 + 100859^2 .

It is a super-2 number, since 2×106212407290² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43888215 + ... + 43890634.

Almost surely, 2^106212407290 is an apocalyptic number.

106212407290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106212407290 is a deficient number, since it is larger than the sum of its proper divisors (103930159610).

106212407290 is a wasteful number, since it uses less digits than its factorization.

106212407290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87778878 (or 87778867 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 106212407290 its reverse (92704212601), we get a palindrome (198916619891).

The spelling of 106212407290 in words is "one hundred six billion, two hundred twelve million, four hundred seven thousand, two hundred ninety".