1012201240 has 32 divisors (see below), whose sum is σ = 2279988000. Its totient is φ = 404429824.

The previous prime is 1012201207. The next prime is 1012201247. The reversal of 1012201240 is 421022101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012201240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012201247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23541 + ... + 50779.

It is an arithmetic number, because the mean of its divisors is an integer number (71249625).

Almost surely, 2^1012201240 is an apocalyptic number.

1012201240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012201240 is an abundant number, since it is smaller than the sum of its proper divisors (1267786760).

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

1012201240 is a wasteful number, since it uses less digits than its factorization.

1012201240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28179 (or 28175 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1012201240 is about 31815.1102465479. The cubic root of 1012201240 is about 1004.0506500799.

Adding to 1012201240 its reverse (421022101), we get a palindrome (1433223341).

The spelling of 1012201240 in words is "one billion, twelve million, two hundred one thousand, two hundred forty".