101211101011212 has 12 divisors (see below), whose sum is σ = 236159235692856. Its totient is φ = 33737033670400.

The previous prime is 101211101011211. The next prime is 101211101011297. The reversal of 101211101011212 is 212110101112101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 101211101011191 and 101211101011200.

It is not an unprimeable number, because it can be changed into a prime (101211101011211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4217129208789 + ... + 4217129208812.

It is an arithmetic number, because the mean of its divisors is an integer number (19679936307738).

Almost surely, 2^{101211101011212} is an apocalyptic number.

101211101011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101211101011212 is an abundant number, since it is smaller than the sum of its proper divisors (134948134681644).

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

101211101011212 is a wasteful number, since it uses less digits than its factorization.

101211101011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8434258417608 (or 8434258417606 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101211101011212 its reverse (212110101112101), we get a palindrome (313321202123313).

The spelling of 101211101011212 in words is "one hundred one trillion, two hundred eleven billion, one hundred one million, eleven thousand, two hundred twelve".