1012277020 has 12 divisors (see below), whose sum is σ = 2125781784. Its totient is φ = 404910800.

The previous prime is 1012277009. The next prime is 1012277039. The reversal of 1012277020 is 207722101.

It is a junction number, because it is equal to n+sod(n) for n = 1012276982 and 1012277000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25306906 + ... + 25306945.

It is an arithmetic number, because the mean of its divisors is an integer number (177148482).

Almost surely, 2^1012277020 is an apocalyptic number.

1012277020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012277020 is an abundant number, since it is smaller than the sum of its proper divisors (1113504764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012277020 is a wasteful number, since it uses less digits than its factorization.

1012277020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50613860 (or 50613858 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 1012277020 is about 31816.3011677976. The cubic root of 1012277020 is about 1004.0757060525.

Adding to 1012277020 its reverse (207722101), we get a palindrome (1219999121).

The spelling of 1012277020 in words is "one billion, twelve million, two hundred seventy-seven thousand, twenty".