2220020101 has 8 divisors (see below), whose sum is σ = 2399425784. Its totient is φ = 2041848000.

The previous prime is 2220020003. The next prime is 2220020107. The reversal of 2220020101 is 1010200222.

It can be written as a sum of positive squares in 4 ways, for example, as 136188900 + 2083831201 = 11670^2 + 45649^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2220020101 - 2⁷ = 2220019973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220020107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304650 + ... + 311851.

It is an arithmetic number, because the mean of its divisors is an integer number (299928223).

Almost surely, 2^2220020101 is an apocalyptic number.

It is an amenable number.

2220020101 is a deficient number, since it is larger than the sum of its proper divisors (179405683).

2220020101 is a wasteful number, since it uses less digits than its factorization.

2220020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616791.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2220020101 is about 47117.0892670589. The cubic root of 2220020101 is about 1304.5246872716.

Adding to 2220020101 its reverse (1010200222), we get a palindrome (3230220323).

The spelling of 2220020101 in words is "two billion, two hundred twenty million, twenty thousand, one hundred one".