2220021012 has 48 divisors (see below), whose sum is σ = 5665189824. Its totient is φ = 671040000.

The previous prime is 2220020993. The next prime is 2220021029. The reversal of 2220021012 is 2101200222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31962 + ... + 73902.

It is an arithmetic number, because the mean of its divisors is an integer number (118024788).

Almost surely, 2^2220021012 is an apocalyptic number.

2220021012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2220021012 is an abundant number, since it is smaller than the sum of its proper divisors (3445168812).

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

2220021012 is a wasteful number, since it uses less digits than its factorization.

2220021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42360 (or 42358 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2220021012 is about 47117.0989344633. The cubic root of 2220021012 is about 1304.5248657117.

Adding to 2220021012 its reverse (2101200222), we get a palindrome (4321221234).

It can be divided in two parts, 22200210 and 12, that added together give a palindrome (22200222).

The spelling of 2220021012 in words is "two billion, two hundred twenty million, twenty-one thousand, twelve".