10212221670 has 64 divisors (see below), whose sum is σ = 28469892096. Its totient is φ = 2295953280.

The previous prime is 10212221641. The next prime is 10212221671. The reversal of 10212221670 is 7612221201.

It is a self number, because there is not a number n which added to its sum of digits gives 10212221670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212221671) 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, 385794 + ... + 411413.

It is an arithmetic number, because the mean of its divisors is an integer number (444842064).

Almost surely, 2^10212221670 is an apocalyptic number.

10212221670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10212221670 is an abundant number, since it is smaller than the sum of its proper divisors (18257670426).

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

10212221670 is a wasteful number, since it uses less digits than its factorization.

10212221670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797285.

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 10212221670 its reverse (7612221201), we get a palindrome (17824442871).

The spelling of 10212221670 in words is "ten billion, two hundred twelve million, two hundred twenty-one thousand, six hundred seventy".