1200220110106 has 4 divisors (see below), whose sum is σ = 1800330165162. Its totient is φ = 600110055052.

The previous prime is 1200220110079. The next prime is 1200220110107. The reversal of 1200220110106 is 6010110220021.

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., 619934194881 + 580285915225 = 787359^2 + 761765^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1200220110106.

It is not an unprimeable number, because it can be changed into a prime (1200220110107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300055027525 + ... + 300055027528.

Almost surely, 2^{1200220110106} is an apocalyptic number.

1200220110106 is a deficient number, since it is larger than the sum of its proper divisors (600110055056).

1200220110106 is an equidigital number, since it uses as much as digits as its factorization.

1200220110106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600110055055.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1200220110106 its reverse (6010110220021), we get a palindrome (7210330330127).

The spelling of 1200220110106 in words is "one trillion, two hundred billion, two hundred twenty million, one hundred ten thousand, one hundred six".