10220200442 has 4 divisors (see below), whose sum is σ = 15330300666. Its totient is φ = 5110100220.

The previous prime is 10220200439. The next prime is 10220200447. The reversal of 10220200442 is 24400202201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9588130561 + 632069881 = 97919^2 + 25141^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10220200442.

It is not an unprimeable number, because it can be changed into a prime (10220200447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555050109 + ... + 2555050112.

Almost surely, 2^10220200442 is an apocalyptic number.

10220200442 is a deficient number, since it is larger than the sum of its proper divisors (5110100224).

10220200442 is an equidigital number, since it uses as much as digits as its factorization.

10220200442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110100223.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 10220200442 its reverse (24400202201), we get a palindrome (34620402643).

The spelling of 10220200442 in words is "ten billion, two hundred twenty million, two hundred thousand, four hundred forty-two".