20120020010010 has 24 divisors (see below), whose sum is σ = 52312052026260. Its totient is φ = 5365338669312.

The previous prime is 20120020009987. The next prime is 20120020010071. The reversal of 20120020010010 is 1001002002102.

It can be written as a sum of positive squares in 2 ways, for example, as 18664447736169 + 1455572273841 = 4320237^2 + 1206471^2 .

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 = 20120020009974 and 20120020010001.

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, 111777888855 + ... + 111777889034.

Almost surely, 2^{20120020010010} is an apocalyptic number.

20120020010010 is an abundant number, since it is smaller than the sum of its proper divisors (32192032016250).

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

20120020010010 is a wasteful number, since it uses less digits than its factorization.

20120020010010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223555777902 (or 223555777899 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20120020010010 its reverse (1001002002102), we get a palindrome (21121022012112).

The spelling of 20120020010010 in words is "twenty trillion, one hundred twenty billion, twenty million, ten thousand, ten".