1020220201 has 64 divisors (see below), whose sum is σ = 1463132160.
Its totient is φ = 684610560.
The previous prime is 1020220171. The next prime is 1020220207.
1020220201 is nontrivially palindromic in base 10.
It is a cyclic number.
It is not a de Polignac number, because 1020220201 - 25 = 1020220169 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1020220207) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2841660 + ... + 2842018.
It is an arithmetic number, because the mean of its divisors is an integer number (22861440).
Almost surely, 21020220201 is an apocalyptic number.
1020220201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
1020220201 is a deficient number, since it is larger than the sum of its proper divisors (442911959).
1020220201 is a wasteful number, since it uses less digits than its factorization.
1020220201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 574.
The product of its (nonzero) digits is 16, while the sum is 10.
The square root of 1020220201 is about 31940.8860396827.
The cubic root of 1020220201 is about 1006.6951420367.
It can be divided in two parts, 10202 and 20201, that multiplied together give a palindrome (206090602).
The spelling of 1020220201 in words is "one billion, twenty million, two hundred twenty thousand, two hundred one".