20102220122210 has 8 divisors (see below), whose sum is σ = 36183996219996. Its totient is φ = 8040888048880.

The previous prime is 20102220122057. The next prime is 20102220122359. The reversal of 20102220122210 is 1222102220102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20068706595721 + 33513526489 = 4479811^2 + 183067^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005111006101 + ... + 1005111006120.

Almost surely, 2^{20102220122210} is an apocalyptic number.

20102220122210 is a deficient number, since it is larger than the sum of its proper divisors (16081776097786).

20102220122210 is a wasteful number, since it uses less digits than its factorization.

20102220122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010222012228.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20102220122210 its reverse (1222102220102), we get a palindrome (21324322342312).

The spelling of 20102220122210 in words is "twenty trillion, one hundred two billion, two hundred twenty million, one hundred twenty-two thousand, two hundred ten".