102221120001000 has 2048 divisors, whose sum is σ = 440762571325440. Its totient is φ = 19034652672000.

The previous prime is 102221120000969. The next prime is 102221120001001. The reversal of 102221120001000 is 100021122201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (102221120001001) by changing a digit.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 74777702317 + ... + 74777703683.

It is an arithmetic number, because the mean of its divisors is an integer number (215216099280).

Almost surely, 2^{102221120001000} is an apocalyptic number.

102221120001000 is a gapful number since it is divisible by the number (10) 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 102221120001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220381285662720).

102221120001000 is an abundant number, since it is smaller than the sum of its proper divisors (338541451324440).

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

102221120001000 is a wasteful number, since it uses less digits than its factorization.

102221120001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102221120001000 its reverse (100021122201), we get a palindrome (102321141123201).

The spelling of 102221120001000 in words is "one hundred two trillion, two hundred twenty-one billion, one hundred twenty million, one thousand".