101212220000000 has 288 divisors, whose sum is σ = 267391642819392. Its totient is φ = 38103296000000.

The previous prime is 101212219999993. The next prime is 101212220000009. The reversal of 101212220000000 is 22212101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212220000009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339851159 + ... + 340148841.

It is an arithmetic number, because the mean of its divisors is an integer number (928443204234).

Almost surely, 2^{101212220000000} is an apocalyptic number.

101212220000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101212220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133695821409696).

101212220000000 is an abundant number, since it is smaller than the sum of its proper divisors (166179422819392).

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

101212220000000 is an frugal number, since it uses more digits than its factorization.

101212220000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297751 (or 297707 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 101212220000000 its reverse (22212101), we get a palindrome (101212242212101).

The spelling of 101212220000000 in words is "one hundred one trillion, two hundred twelve billion, two hundred twenty million", and thus it is an aban number.