10212211212 has 96 divisors (see below), whose sum is σ = 27958554624. Its totient is φ = 2840443200.

The previous prime is 10212211201. The next prime is 10212211223. The reversal of 10212211212 is 21211221201.

It is an interprime number because it is at equal distance from previous prime (10212211201) and next prime (10212211223).

It is a junction number, because it is equal to n+sod(n) for n = 10212211191 and 10212211200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1118787 + ... + 1127877.

It is an arithmetic number, because the mean of its divisors is an integer number (291234944).

Almost surely, 2^10212211212 is an apocalyptic number.

10212211212 is a gapful number since it is divisible by the number (12) 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 10212211212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13979277312).

10212211212 is an abundant number, since it is smaller than the sum of its proper divisors (17746343412).

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

10212211212 is a wasteful number, since it uses less digits than its factorization.

10212211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9459 (or 9457 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10212211212 its reverse (21211221201), we get a palindrome (31423432413).

The spelling of 10212211212 in words is "ten billion, two hundred twelve million, two hundred eleven thousand, two hundred twelve".