1012205061 has 48 divisors (see below), whose sum is σ = 1692296320. Its totient is φ = 571069440.

The previous prime is 1012205059. The next prime is 1012205063. The reversal of 1012205061 is 1605022101.

It is an interprime number because it is at equal distance from previous prime (1012205059) and next prime (1012205063).

It is not a de Polignac number, because 1012205061 - 2¹ = 1012205059 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012205063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2474625 + ... + 2475033.

Almost surely, 2^1012205061 is an apocalyptic number.

It is an amenable number.

1012205061 is a deficient number, since it is larger than the sum of its proper divisors (680091259).

1012205061 is a wasteful number, since it uses less digits than its factorization.

1012205061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1012205061 is about 31815.1702965739. The cubic root of 1012205061 is about 1004.0519134890.

Adding to 1012205061 its reverse (1605022101), we get a palindrome (2617227162).

The spelling of 1012205061 in words is "one billion, twelve million, two hundred five thousand, sixty-one".