2220101020 has 12 divisors (see below), whose sum is σ = 4662212184. Its totient is φ = 888040400.

The previous prime is 2220101017. The next prime is 2220101041. The reversal of 2220101020 is 201010222.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2220100988 and 2220101006.

It is a congruent number.

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, 55502506 + ... + 55502545.

It is an arithmetic number, because the mean of its divisors is an integer number (388517682).

Almost surely, 2^2220101020 is an apocalyptic number.

2220101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220101020 is an abundant number, since it is smaller than the sum of its proper divisors (2442111164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220101020 is a wasteful number, since it uses less digits than its factorization.

2220101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111005060 (or 111005058 counting only the distinct ones).

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

The square root of 2220101020 is about 47117.9479604110. The cubic root of 2220101020 is about 1304.5405369104.

Adding to 2220101020 its reverse (201010222), we get a palindrome (2421111242).

It can be divided in two parts, 2 and 220101020, that added together give a palindrome (220101022).

The spelling of 2220101020 in words is "two billion, two hundred twenty million, one hundred one thousand, twenty".