1022512441645 has 16 divisors (see below), whose sum is σ = 1330879899888. Its totient is φ = 751113871360.

The previous prime is 1022512441627. The next prime is 1022512441649. The reversal of 1022512441645 is 5461442152201.

It can be written as a sum of positive squares in 8 ways, for example, as 2618471241 + 1019893970404 = 51171^2 + 1009898^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1022512441645 is a prime.

It is a super-3 number, since 3×1022512441645³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022512441649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146698444 + ... + 146705413.

It is an arithmetic number, because the mean of its divisors is an integer number (83179993743).

Almost surely, 2^{1022512441645} is an apocalyptic number.

It is an amenable number.

1022512441645 is a deficient number, since it is larger than the sum of its proper divisors (308367458243).

1022512441645 is a wasteful number, since it uses less digits than its factorization.

1022512441645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293403920.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 1022512441645 its reverse (5461442152201), we get a palindrome (6483954593846).

The spelling of 1022512441645 in words is "one trillion, twenty-two billion, five hundred twelve million, four hundred forty-one thousand, six hundred forty-five".