1020022651 has 8 divisors (see below), whose sum is σ = 1044172800. Its totient is φ = 995892072.

The previous prime is 1020022643. The next prime is 1020022691. The reversal of 1020022651 is 1562200201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020022651 - 2³ = 1020022643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020022631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203886 + ... + 208828.

It is an arithmetic number, because the mean of its divisors is an integer number (130521600).

Almost surely, 2^1020022651 is an apocalyptic number.

1020022651 is a deficient number, since it is larger than the sum of its proper divisors (24150149).

1020022651 is an equidigital number, since it uses as much as digits as its factorization.

1020022651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9785.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1020022651 is about 31937.7934585344. The cubic root of 1020022651 is about 1006.6301608157.

Adding to 1020022651 its reverse (1562200201), we get a palindrome (2582222852).

It can be divided in two parts, 102002 and 2651, that added together give a triangular number (104653 = T₄₅₇).

The spelling of 1020022651 in words is "one billion, twenty million, twenty-two thousand, six hundred fifty-one".