1522213221450 has 96 divisors (see below), whose sum is σ = 3857696305920. Its totient is φ = 397051244800.

The previous prime is 1522213221439. The next prime is 1522213221467. The reversal of 1522213221450 is 541223122251.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11985280 + ... + 12111620.

It is an arithmetic number, because the mean of its divisors is an integer number (40184336520).

Almost surely, 2^{1522213221450} is an apocalyptic number.

1522213221450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1522213221450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1928848152960).

1522213221450 is an abundant number, since it is smaller than the sum of its proper divisors (2335483084470).

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

1522213221450 is a wasteful number, since it uses less digits than its factorization.

1522213221450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128112 (or 128107 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 1522213221450 in words is "one trillion, five hundred twenty-two billion, two hundred thirteen million, two hundred twenty-one thousand, four hundred fifty".