1210011020 has 12 divisors (see below), whose sum is σ = 2541023184. Its totient is φ = 484004400.

The previous prime is 1210010957. The next prime is 1210011031. The reversal of 1210011020 is 201100121.

It is a junction number, because it is equal to n+sod(n) for n = 1210010989 and 1210011007.

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, 30250256 + ... + 30250295.

It is an arithmetic number, because the mean of its divisors is an integer number (211751932).

Almost surely, 2^1210011020 is an apocalyptic number.

1210011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210011020 is an abundant number, since it is smaller than the sum of its proper divisors (1331012164).

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

1210011020 is a wasteful number, since it uses less digits than its factorization.

1210011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60500560 (or 60500558 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1210011020 is about 34785.2126628543. The cubic root of 1210011020 is about 1065.6054717256.

Adding to 1210011020 its reverse (201100121), we get a palindrome (1411111141).

The spelling of 1210011020 in words is "one billion, two hundred ten million, eleven thousand, twenty".