1220231300022 has 192 divisors, whose sum is σ = 3219558451200. Its totient is φ = 326052283392.

The previous prime is 1220231300011. The next prime is 1220231300051. The reversal of 1220231300022 is 2200031320221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1220231299968 and 1220231300004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 453110908 + ... + 453113600.

It is an arithmetic number, because the mean of its divisors is an integer number (16768533600).

Almost surely, 2^{1220231300022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220231300022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609779225600).

1220231300022 is an abundant number, since it is smaller than the sum of its proper divisors (1999327151178).

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

1220231300022 is a wasteful number, since it uses less digits than its factorization.

1220231300022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987 (or 3984 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1220231300022 its reverse (2200031320221), we get a palindrome (3420262620243).

The spelling of 1220231300022 in words is "one trillion, two hundred twenty billion, two hundred thirty-one million, three hundred thousand, twenty-two".