101221110221000 has 384 divisors, whose sum is σ = 303870626841600. Its totient is φ = 30878160192000.

The previous prime is 101221110220981. The next prime is 101221110221039. The reversal of 101221110221000 is 122011122101.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38537666 + ... + 41080334.

It is an arithmetic number, because the mean of its divisors is an integer number (791329757400).

Almost surely, 2^{101221110221000} is an apocalyptic number.

101221110221000 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 101221110221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151935313420800).

101221110221000 is an abundant number, since it is smaller than the sum of its proper divisors (202649516620600).

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

101221110221000 is a wasteful number, since it uses less digits than its factorization.

101221110221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542766 (or 2542741 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101221110221000 its reverse (122011122101), we get a palindrome (101343121343101).

It can be divided in two parts, 1012211 and 10221000, that added together give a palindrome (11233211).

The spelling of 101221110221000 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred ten million, two hundred twenty-one thousand".