20020110101010 has 24 divisors (see below), whose sum is σ = 52052286262860. Its totient is φ = 5338696026912.

The previous prime is 20020110101009. The next prime is 20020110101027. The reversal of 20020110101010 is 1010101102002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19763368251201 + 256741849809 = 4445601^2 + 506697^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20020110100983 and 20020110101001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111222833805 + ... + 111222833984.

Almost surely, 2^{20020110101010} is an apocalyptic number.

20020110101010 is an abundant number, since it is smaller than the sum of its proper divisors (32032176161850).

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

20020110101010 is a wasteful number, since it uses less digits than its factorization.

20020110101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222445667802 (or 222445667799 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20020110101010 its reverse (1010101102002), we get a palindrome (21030211203012).

The spelling of 20020110101010 in words is "twenty trillion, twenty billion, one hundred ten million, one hundred one thousand, ten".