1020422021042 has 8 divisors (see below), whose sum is σ = 1530640412076. Its totient is φ = 510208550352.

The previous prime is 1020422021029. The next prime is 1020422021077. The reversal of 1020422021042 is 2401202240201.

It can be written as a sum of positive squares in 2 ways, for example, as 980458412761 + 39963608281 = 990181^2 + 199909^2 .

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

It is a super-2 number, since 2×1020422021042² (a number of 25 digits) contains 22 as substring.

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, 658493 + ... + 1573040.

Almost surely, 2^{1020422021042} is an apocalyptic number.

1020422021042 is a deficient number, since it is larger than the sum of its proper divisors (510218391034).

1020422021042 is a wasteful number, since it uses less digits than its factorization.

1020422021042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460172.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1020422021042 its reverse (2401202240201), we get a palindrome (3421624261243).

The spelling of 1020422021042 in words is "one trillion, twenty billion, four hundred twenty-two million, twenty-one thousand, forty-two".