101221000222000 has 160 divisors (see below), whose sum is σ = 253409990633280. Its totient is φ = 39058609049600.

The previous prime is 101221000221977. The next prime is 101221000222051. The reversal of 101221000222000 is 222000122101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66703704 + ... + 68204296.

It is an arithmetic number, because the mean of its divisors is an integer number (1583812441458).

Almost surely, 2^{101221000222000} is an apocalyptic number.

101221000222000 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 101221000222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126704995316640).

101221000222000 is an abundant number, since it is smaller than the sum of its proper divisors (152188990411280).

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

101221000222000 is a wasteful number, since it uses less digits than its factorization.

101221000222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501808 (or 1501792 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 101221000222000 its reverse (222000122101), we get a palindrome (101443000344101).

The spelling of 101221000222000 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred twenty-two thousand".