1020522420442 has 8 divisors (see below), whose sum is σ = 1749467006496. Its totient is φ = 437366751612.

The previous prime is 1020522420427. The next prime is 1020522420451. The reversal of 1020522420442 is 2440242250201.

It is a happy number.

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 1020522420442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36447229288 + ... + 36447229315.

It is an arithmetic number, because the mean of its divisors is an integer number (218683375812).

Almost surely, 2^{1020522420442} is an apocalyptic number.

1020522420442 is a deficient number, since it is larger than the sum of its proper divisors (728944586054).

1020522420442 is an equidigital number, since it uses as much as digits as its factorization.

1020522420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72894458612.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 1020522420442 its reverse (2440242250201), we get a palindrome (3460764670643).

The spelling of 1020522420442 in words is "one trillion, twenty billion, five hundred twenty-two million, four hundred twenty thousand, four hundred forty-two".