10212001222212 has 72 divisors (see below), whose sum is σ = 25970827644216. Its totient is φ = 3383334273024.

The previous prime is 10212001222211. The next prime is 10212001222229. The reversal of 10212001222212 is 21222210021201.

It is a happy number.

10212001222212 is a `hidden beast` number, since 10 + 21 + 200 + 1 + 222 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4790293878276 + 5421707343936 = 2188674^2 + 2328456^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10212001222211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3020548 + ... + 5435780.

It is an arithmetic number, because the mean of its divisors is an integer number (360705939503).

Almost surely, 2^{10212001222212} is an apocalyptic number.

10212001222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10212001222212 is an abundant number, since it is smaller than the sum of its proper divisors (15758826422004).

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

10212001222212 is a wasteful number, since it uses less digits than its factorization.

10212001222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415957 (or 2415952 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10212001222212 its reverse (21222210021201), we get a palindrome (31434211243413).

The spelling of 10212001222212 in words is "ten trillion, two hundred twelve billion, one million, two hundred twenty-two thousand, two hundred twelve".