2022215420 has 24 divisors (see below), whose sum is σ = 4337008704. Its totient is φ = 791675456.

The previous prime is 2022215417. The next prime is 2022215431. The reversal of 2022215420 is 245122202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2022215392 and 2022215401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074707 + ... + 1076586.

It is an arithmetic number, because the mean of its divisors is an integer number (180708696).

Almost surely, 2^2022215420 is an apocalyptic number.

2022215420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022215420 is an abundant number, since it is smaller than the sum of its proper divisors (2314793284).

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

2022215420 is a wasteful number, since it uses less digits than its factorization.

2022215420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151349 (or 2151347 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2022215420 is about 44969.0495785713. The cubic root of 2022215420 is about 1264.5688292914.

Adding to 2022215420 its reverse (245122202), we get a palindrome (2267337622).

The spelling of 2022215420 in words is "two billion, twenty-two million, two hundred fifteen thousand, four hundred twenty".