1000221222132 has 108 divisors (see below), whose sum is σ = 2779607900160. Its totient is φ = 303039892320.

The previous prime is 1000221222131. The next prime is 1000221222149. The reversal of 1000221222132 is 2312221220001.

1000221222132 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000221222131) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26740219 + ... + 26777597.

Almost surely, 2^{1000221222132} is an apocalyptic number.

1000221222132 is a gapful number since it is divisible by the number (12) 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 1000221222132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1389803950080).

1000221222132 is an abundant number, since it is smaller than the sum of its proper divisors (1779386678028).

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

1000221222132 is a wasteful number, since it uses less digits than its factorization.

1000221222132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43554 (or 43538 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1000221222132 its reverse (2312221220001), we get a palindrome (3312442442133).

The spelling of 1000221222132 in words is "one trillion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred thirty-two".