1022054021 has 4 divisors (see below), whose sum is σ = 1027764000. Its totient is φ = 1016344044.

The previous prime is 1022053993. The next prime is 1022054029. The reversal of 1022054021 is 1204502201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1204502201 = 7 ⋅172071743.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022054021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022054029) 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, 2854721 + ... + 2855078.

It is an arithmetic number, because the mean of its divisors is an integer number (256941000).

Almost surely, 2^1022054021 is an apocalyptic number.

It is an amenable number.

1022054021 is a deficient number, since it is larger than the sum of its proper divisors (5709979).

1022054021 is an equidigital number, since it uses as much as digits as its factorization.

1022054021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5709978.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1022054021 is about 31969.5796187563. The cubic root of 1022054021 is about 1007.2979506860.

Adding to 1022054021 its reverse (1204502201), we get a palindrome (2226556222).

The spelling of 1022054021 in words is "one billion, twenty-two million, fifty-four thousand, twenty-one".