10212213220 has 24 divisors (see below), whose sum is σ = 23395252608. Its totient is φ = 3713532000.

The previous prime is 10212213199. The next prime is 10212213239. The reversal of 10212213220 is 2231221201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10212213194 and 10212213203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23209356 + ... + 23209795.

It is an arithmetic number, because the mean of its divisors is an integer number (974802192).

Almost surely, 2^10212213220 is an apocalyptic number.

10212213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212213220 is an abundant number, since it is smaller than the sum of its proper divisors (13183039388).

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

10212213220 is a wasteful number, since it uses less digits than its factorization.

10212213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46419171 (or 46419169 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10212213220 its reverse (2231221201), we get a palindrome (12443434421).

The spelling of 10212213220 in words is "ten billion, two hundred twelve million, two hundred thirteen thousand, two hundred twenty".