1250210020 has 48 divisors (see below), whose sum is σ = 2703477168. Its totient is φ = 485291520.

The previous prime is 1250210009. The next prime is 1250210041. The reversal of 1250210020 is 200120521.

It can be written as a sum of positive squares in 8 ways, for example, as 304704 + 1249905316 = 552^2 + 35354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309534 + ... + 313546.

It is an arithmetic number, because the mean of its divisors is an integer number (56322441).

Almost surely, 2^1250210020 is an apocalyptic number.

1250210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1250210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351738584).

1250210020 is an abundant number, since it is smaller than the sum of its proper divisors (1453267148).

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

1250210020 is a wasteful number, since it uses less digits than its factorization.

1250210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480 (or 4478 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1250210020 is about 35358.3090659042. The cubic root of 1250210020 is about 1077.2776715539.

Adding to 1250210020 its reverse (200120521), we get a palindrome (1450330541).

It can be divided in two parts, 12502 and 10020, that added together give a palindrome (22522).

The spelling of 1250210020 in words is "one billion, two hundred fifty million, two hundred ten thousand, twenty".