10212444220 has 48 divisors (see below), whose sum is σ = 23420220768. Its totient is φ = 3709736960.

The previous prime is 10212444191. The next prime is 10212444227. The reversal of 10212444220 is 2244421201.

It is a super-2 number, since 2×10212444220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 10212444191 and 10212444200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212444227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191184 + ... + 238696.

It is an arithmetic number, because the mean of its divisors is an integer number (487921266).

Almost surely, 2^10212444220 is an apocalyptic number.

10212444220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212444220 is an abundant number, since it is smaller than the sum of its proper divisors (13207776548).

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

10212444220 is a wasteful number, since it uses less digits than its factorization.

10212444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48510 (or 48508 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 10212444220 its reverse (2244421201), we get a palindrome (12456865421).

The spelling of 10212444220 in words is "ten billion, two hundred twelve million, four hundred forty-four thousand, two hundred twenty".