20022120100210 has 32 divisors (see below), whose sum is σ = 37286909800560. Its totient is φ = 7731780440832.

The previous prime is 20022120100207. The next prime is 20022120100211. The reversal of 20022120100210 is 1200102122002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6697335102241 + 13324784997969 = 2587921^2 + 3650313^2 .

It is not an unprimeable number, because it can be changed into a prime (20022120100211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1522329 + ... + 6508588.

Almost surely, 2^{20022120100210} is an apocalyptic number.

20022120100210 is a deficient number, since it is larger than the sum of its proper divisors (17264789700350).

20022120100210 is a wasteful number, since it uses less digits than its factorization.

20022120100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039550.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20022120100210 its reverse (1200102122002), we get a palindrome (21222222222212).

The spelling of 20022120100210 in words is "twenty trillion, twenty-two billion, one hundred twenty million, one hundred thousand, two hundred ten".