101231212210 has 16 divisors (see below), whose sum is σ = 182230810776. Its totient is φ = 40489234048.

The previous prime is 101231212189. The next prime is 101231212217. The reversal of 101231212210 is 12212132101.

It can be written as a sum of positive squares in 4 ways, for example, as 35080915401 + 66150296809 = 187299^2 + 257197^2 .

It is not an unprimeable number, because it can be changed into a prime (101231212217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273499 + ... + 526558.

Almost surely, 2^101231212210 is an apocalyptic number.

101231212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101231212210 is a deficient number, since it is larger than the sum of its proper divisors (80999598566).

101231212210 is a wasteful number, since it uses less digits than its factorization.

101231212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812717.

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

Adding to 101231212210 its reverse (12212132101), we get a palindrome (113443344311).

The spelling of 101231212210 in words is "one hundred one billion, two hundred thirty-one million, two hundred twelve thousand, two hundred ten".