1521202222 has 8 divisors (see below), whose sum is σ = 2283185376. Its totient is φ = 760140432.

The previous prime is 1521202219. The next prime is 1521202229. The reversal of 1521202222 is 2222021251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1521202222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521202229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226198 + ... + 232825.

It is an arithmetic number, because the mean of its divisors is an integer number (285398172).

Almost surely, 2^1521202222 is an apocalyptic number.

1521202222 is a deficient number, since it is larger than the sum of its proper divisors (761983154).

1521202222 is a wasteful number, since it uses less digits than its factorization.

1521202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460682.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1521202222 is about 39002.5925035760. The cubic root of 1521202222 is about 1150.0824697001.

Adding to 1521202222 its reverse (2222021251), we get a palindrome (3743223473).

The spelling of 1521202222 in words is "one billion, five hundred twenty-one million, two hundred two thousand, two hundred twenty-two".