101211100212 has 24 divisors (see below), whose sum is σ = 239684000416. Its totient is φ = 33233495328.

The previous prime is 101211100183. The next prime is 101211100213. The reversal of 101211100212 is 212001112101.

It is a super-2 number, since 2×101211100212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211100213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62941423 + ... + 62943030.

Almost surely, 2^101211100212 is an apocalyptic number.

101211100212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101211100212 is an abundant number, since it is smaller than the sum of its proper divisors (138472900204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101211100212 is a wasteful number, since it uses less digits than its factorization.

101211100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125884527 (or 125884525 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101211100212 its reverse (212001112101), we get a palindrome (313212212313).

The spelling of 101211100212 in words is "one hundred one billion, two hundred eleven million, one hundred thousand, two hundred twelve".