201220420130 has 8 divisors (see below), whose sum is σ = 362196756252. Its totient is φ = 80488168048.

The previous prime is 201220420111. The next prime is 201220420147. The reversal of 201220420130 is 31024022102.

It can be written as a sum of positive squares in 2 ways, for example, as 177921145249 + 23299274881 = 421807^2 + 152641^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201220420099 and 201220420108.

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, 10061020997 + ... + 10061021016.

Almost surely, 2^201220420130 is an apocalyptic number.

201220420130 is a deficient number, since it is larger than the sum of its proper divisors (160976336122).

201220420130 is a wasteful number, since it uses less digits than its factorization.

201220420130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20122042020.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 201220420130 its reverse (31024022102), we get a palindrome (232244442232).

The spelling of 201220420130 in words is "two hundred one billion, two hundred twenty million, four hundred twenty thousand, one hundred thirty".