1022770081 has 8 divisors (see below), whose sum is σ = 1026665640. Its totient is φ = 1018881792.

The previous prime is 1022770079. The next prime is 1022770087. The reversal of 1022770081 is 1800772201.

It can be written as a sum of positive squares in 4 ways, for example, as 1392400 + 1021377681 = 1180^2 + 31959^2 .

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 1022770081 - 2¹ = 1022770079 is a prime.

It is a super-2 number, since 2×1022770081² = 2092117277177493122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022770087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603271 + ... + 604963.

It is an arithmetic number, because the mean of its divisors is an integer number (128333205).

Almost surely, 2^1022770081 is an apocalyptic number.

It is an amenable number.

1022770081 is a deficient number, since it is larger than the sum of its proper divisors (3895559).

1022770081 is a wasteful number, since it uses less digits than its factorization.

1022770081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 1022770081 is about 31980.7767416615. The cubic root of 1022770081 is about 1007.5331363594.

It can be divided in two parts, 10227 and 70081, that added together give a palindrome (80308).

The spelling of 1022770081 in words is "one billion, twenty-two million, seven hundred seventy thousand, eighty-one".