213222889071036 has 192 divisors, whose sum is σ = 608524060784640. Its totient is φ = 64970077641408.

The previous prime is 213222889071007. The next prime is 213222889071041. The reversal of 213222889071036 is 630170988222312.

213222889071036 is a `hidden beast` number, since 2 + 1 + 322 + 288 + 9 + 0 + 7 + 1 + 0 + 36 = 666.

It is a super-2 number, since 2×213222889071036² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2612041 + ... + 20815103.

It is an arithmetic number, because the mean of its divisors is an integer number (3169396149920).

Almost surely, 2^{213222889071036} is an apocalyptic number.

213222889071036 is a gapful number since it is divisible by the number (26) 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 213222889071036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304262030392320).

213222889071036 is an abundant number, since it is smaller than the sum of its proper divisors (395301171713604).

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

213222889071036 is a wasteful number, since it uses less digits than its factorization.

213222889071036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18203204 (or 18203184 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 213222889071036 in words is "two hundred thirteen trillion, two hundred twenty-two billion, eight hundred eighty-nine million, seventy-one thousand, thirty-six".