23212200221232 has 160 divisors (see below), whose sum is σ = 67559546983680. Its totient is φ = 6805656898560.

The previous prime is 23212200221227. The next prime is 23212200221237.

23212200221232 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (23212200221227) and next prime (23212200221237).

It is a super-2 number, since 2×23212200221232² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (23212200221237) 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, 178018 + ... + 6815870.

It is an arithmetic number, because the mean of its divisors is an integer number (422247168648).

Almost surely, 2^{23212200221232} is an apocalyptic number.

23212200221232 is a gapful number since it is divisible by the number (22) 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 23212200221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33779773491840).

23212200221232 is an abundant number, since it is smaller than the sum of its proper divisors (44347346762448).

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

23212200221232 is a wasteful number, since it uses less digits than its factorization.

23212200221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6638091 (or 6638085 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

It can be divided in two parts, 23212200 and 221232, that added together give a palindrome (23433432).

The spelling of 23212200221232 in words is "twenty-three trillion, two hundred twelve billion, two hundred million, two hundred twenty-one thousand, two hundred thirty-two".