101212111021211 has 8 divisors (see below), whose sum is σ = 107165961048384. Its totient is φ = 95258282820480.

The previous prime is 101212111021171. The next prime is 101212111021363. The reversal of 101212111021211 is 112120111212101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101212111021211 - 2²⁶ = 101212043912347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101212111021211.

It is not an unprimeable number, because it can be changed into a prime (101212111021811) 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, 4622366 + ... + 14959628.

It is an arithmetic number, because the mean of its divisors is an integer number (13395745131048).

Almost surely, 2^{101212111021211} is an apocalyptic number.

101212111021211 is a deficient number, since it is larger than the sum of its proper divisors (5953850027173).

101212111021211 is a wasteful number, since it uses less digits than its factorization.

101212111021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10913221.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 101212111021211 its reverse (112120111212101), we get a palindrome (213332222233312).

The spelling of 101212111021211 in words is "one hundred one trillion, two hundred twelve billion, one hundred eleven million, twenty-one thousand, two hundred eleven".