223211121020 has 12 divisors (see below), whose sum is σ = 468743354184. Its totient is φ = 89284448400.

The previous prime is 223211120987. The next prime is 223211121053. The reversal of 223211121020 is 20121112322.

It is an interprime number because it is at equal distance from previous prime (223211120987) and next prime (223211121053).

It is a super-3 number, since 3×223211121020³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223211121020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5580278006 + ... + 5580278045.

It is an arithmetic number, because the mean of its divisors is an integer number (39061946182).

Almost surely, 2^223211121020 is an apocalyptic number.

223211121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223211121020 is an abundant number, since it is smaller than the sum of its proper divisors (245532233164).

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

223211121020 is a wasteful number, since it uses less digits than its factorization.

223211121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11160556060 (or 11160556058 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 223211121020 its reverse (20121112322), we get a palindrome (243332233342).

The spelling of 223211121020 in words is "two hundred twenty-three billion, two hundred eleven million, one hundred twenty-one thousand, twenty".