1021200242 has 8 divisors (see below), whose sum is σ = 1553375232. Its totient is φ = 503408500.

The previous prime is 1021200241. The next prime is 1021200247. The reversal of 1021200242 is 2420021201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1021200241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3595634 + ... + 3595917.

It is an arithmetic number, because the mean of its divisors is an integer number (194171904).

Almost surely, 2^1021200242 is an apocalyptic number.

1021200242 is a deficient number, since it is larger than the sum of its proper divisors (532174990).

1021200242 is an equidigital number, since it uses as much as digits as its factorization.

1021200242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191624.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1021200242 is about 31956.2238382447. The cubic root of 1021200242 is about 1007.0173884058.

Adding to 1021200242 its reverse (2420021201), we get a palindrome (3441221443).

The spelling of 1021200242 in words is "one billion, twenty-one million, two hundred thousand, two hundred forty-two".