1220350203522 has 32 divisors (see below), whose sum is σ = 2723836017600. Its totient is φ = 404991399744.

The previous prime is 1220350203497. The next prime is 1220350203557. The reversal of 1220350203522 is 2253020530221.

1220350203522 is a `hidden beast` number, since 122 + 0 + 3 + 502 + 0 + 35 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49765447 + ... + 49789962.

It is an arithmetic number, because the mean of its divisors is an integer number (85119875550).

Almost surely, 2^{1220350203522} is an apocalyptic number.

1220350203522 is an abundant number, since it is smaller than the sum of its proper divisors (1503485814078).

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

1220350203522 is a wasteful number, since it uses less digits than its factorization.

1220350203522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99555647 (or 99555641 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 1220350203522 its reverse (2253020530221), we get a palindrome (3473370733743).

The spelling of 1220350203522 in words is "one trillion, two hundred twenty billion, three hundred fifty million, two hundred three thousand, five hundred twenty-two".