202022020 has 12 divisors (see below), whose sum is σ = 424246284. Its totient is φ = 80808800.

The previous prime is 202022011. The next prime is 202022021. The reversal of 202022020 is 20220202.

It can be written as a sum of positive squares in 2 ways, for example, as 137733696 + 64288324 = 11736^2 + 8018^2 .

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 = 202021988 and 202022006.

It is not an unprimeable number, because it can be changed into a prime (202022021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050531 + ... + 5050570.

It is an arithmetic number, because the mean of its divisors is an integer number (35353857).

Almost surely, 2^202022020 is an apocalyptic number.

202022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202022020 is an abundant number, since it is smaller than the sum of its proper divisors (222224264).

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

202022020 is a wasteful number, since it uses less digits than its factorization.

202022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101110 (or 10101108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 202022020 is about 14213.4450433384. The cubic root of 202022020 is about 586.7677504597.

Adding to 202022020 its reverse (20220202), we get a palindrome (222242222).

It can be divided in two parts, 20202 and 2020, that added together give a palindrome (22222).

The spelling of 202022020 in words is "two hundred two million, twenty-two thousand, twenty".