101212212211212 has 48 divisors (see below), whose sum is σ = 250056104145120. Its totient is φ = 31752545697792.

The previous prime is 101212212211193. The next prime is 101212212211219. The reversal of 101212212211212 is 212112212212101.

It is a super-2 number, since 2×101212212211212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101212212211219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19377964 + ... + 24040172.

It is an arithmetic number, because the mean of its divisors is an integer number (5209502169690).

Almost surely, 2^{101212212211212} is an apocalyptic number.

101212212211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101212212211212 is an abundant number, since it is smaller than the sum of its proper divisors (148843891933908).

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

101212212211212 is a wasteful number, since it uses less digits than its factorization.

101212212211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768650 (or 4768648 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 101212212211212 its reverse (212112212212101), we get a palindrome (313324424423313).

The spelling of 101212212211212 in words is "one hundred one trillion, two hundred twelve billion, two hundred twelve million, two hundred eleven thousand, two hundred twelve".