20002202020 has 12 divisors (see below), whose sum is σ = 42004624284. Its totient is φ = 8000880800.

The previous prime is 20002201963. The next prime is 20002202021. The reversal of 20002202020 is 2020220002.

It can be written as a sum of positive squares in 2 ways, for example, as 13937219136 + 6064982884 = 118056^2 + 77878^2 .

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 = 20002201988 and 20002202006.

It is not an unprimeable number, because it can be changed into a prime (20002202021) 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, 500055031 + ... + 500055070.

It is an arithmetic number, because the mean of its divisors is an integer number (3500385357).

Almost surely, 2^20002202020 is an apocalyptic number.

20002202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002202020 is an abundant number, since it is smaller than the sum of its proper divisors (22002422264).

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

20002202020 is a wasteful number, since it uses less digits than its factorization.

20002202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000110110 (or 1000110108 counting only the distinct ones).

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

Adding to 20002202020 its reverse (2020220002), we get a palindrome (22022422022).

The spelling of 20002202020 in words is "twenty billion, two million, two hundred two thousand, twenty".