23112221212102 has 24 divisors (see below), whose sum is σ = 38116238580000. Its totient is φ = 10502873993040.

The previous prime is 23112221212079. The next prime is 23112221212127. The reversal of 23112221212102 is 20121212221132.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11236477 + ... + 13133272.

It is an arithmetic number, because the mean of its divisors is an integer number (1588176607500).

Almost surely, 2^{23112221212102} is an apocalyptic number.

23112221212102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23112221212102 is a deficient number, since it is larger than the sum of its proper divisors (15004017367898).

23112221212102 is a wasteful number, since it uses less digits than its factorization.

23112221212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24373692 (or 24373681 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 23112221212102 its reverse (20121212221132), we get a palindrome (43233433433234).

The spelling of 23112221212102 in words is "twenty-three trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, one hundred two".