1220322010152 has 256 divisors, whose sum is σ = 3739606548480. Its totient is φ = 323924889600.

The previous prime is 1220322010139. The next prime is 1220322010207. The reversal of 1220322010152 is 2510102230221.

It is a super-2 number, since 2×1220322010152² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71451438 + ... + 71468514.

It is an arithmetic number, because the mean of its divisors is an integer number (14607838080).

Almost surely, 2^{1220322010152} is an apocalyptic number.

1220322010152 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 1220322010152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1869803274240).

1220322010152 is an abundant number, since it is smaller than the sum of its proper divisors (2519284538328).

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

1220322010152 is a wasteful number, since it uses less digits than its factorization.

1220322010152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17432 (or 17428 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 1220322010152 its reverse (2510102230221), we get a palindrome (3730424240373).

The spelling of 1220322010152 in words is "one trillion, two hundred twenty billion, three hundred twenty-two million, ten thousand, one hundred fifty-two".