1001222302212 has 288 divisors, whose sum is σ = 2936369479680. Its totient is φ = 284678634240.

The previous prime is 1001222302193. The next prime is 1001222302237. The reversal of 1001222302212 is 2122032221001.

1001222302212 is a `hidden beast` number, since 100 + 122 + 230 + 2 + 212 = 666.

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

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, 112962093 + ... + 112970955.

It is an arithmetic number, because the mean of its divisors is an integer number (10195727360).

Almost surely, 2^{1001222302212} is an apocalyptic number.

1001222302212 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 1001222302212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468184739840).

1001222302212 is an abundant number, since it is smaller than the sum of its proper divisors (1935147177468).

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

1001222302212 is a wasteful number, since it uses less digits than its factorization.

1001222302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143 (or 9138 counting only the distinct ones).

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

Adding to 1001222302212 its reverse (2122032221001), we get a palindrome (3123254523213).

The spelling of 1001222302212 in words is "one trillion, one billion, two hundred twenty-two million, three hundred two thousand, two hundred twelve".