1022271516 has 180 divisors, whose sum is σ = 3273316200. Its totient is φ = 276623424.

The previous prime is 1022271511. The next prime is 1022271517. The reversal of 1022271516 is 6151722201.

1022271516 is digitally balanced in base 2, because in such base 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 (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1022271516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022271511) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 299950 + ... + 303338.

It is an arithmetic number, because the mean of its divisors is an integer number (18185090).

Almost surely, 2^1022271516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022271516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1636658100).

1022271516 is an abundant number, since it is smaller than the sum of its proper divisors (2251044684).

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

1022271516 is a wasteful number, since it uses less digits than its factorization.

1022271516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438 (or 3420 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 1022271516 is about 31972.9810308642. The cubic root of 1022271516 is about 1007.3693972451.

Adding to 1022271516 its reverse (6151722201), we get a palindrome (7173993717).

The spelling of 1022271516 in words is "one billion, twenty-two million, two hundred seventy-one thousand, five hundred sixteen".