20022212020 has 12 divisors (see below), whose sum is σ = 42046645284. Its totient is φ = 8008884800.

The previous prime is 20022211997. The next prime is 20022212099. The reversal of 20022212020 is 2021222002.

It can be written as a sum of positive squares in 2 ways, for example, as 8109362704 + 11912849316 = 90052^2 + 109146^2 .

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, 500555281 + ... + 500555320.

It is an arithmetic number, because the mean of its divisors is an integer number (3503887107).

Almost surely, 2^20022212020 is an apocalyptic number.

20022212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022212020 is an abundant number, since it is smaller than the sum of its proper divisors (22024433264).

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

20022212020 is a wasteful number, since it uses less digits than its factorization.

20022212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001110610 (or 1001110608 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20022212020 its reverse (2021222002), we get a palindrome (22043434022).

The spelling of 20022212020 in words is "twenty billion, twenty-two million, two hundred twelve thousand, twenty".