20010012102 has 12 divisors (see below), whose sum is σ = 43355026260. Its totient is φ = 6670004028.

The previous prime is 20010012101. The next prime is 20010012103. The reversal of 20010012102 is 20121001002.

It is an interprime number because it is at equal distance from previous prime (20010012101) and next prime (20010012103).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010012101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555833652 + ... + 555833687.

It is an arithmetic number, because the mean of its divisors is an integer number (3612918855).

Almost surely, 2^20010012102 is an apocalyptic number.

20010012102 is an abundant number, since it is smaller than the sum of its proper divisors (23345014158).

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

20010012102 is a wasteful number, since it uses less digits than its factorization.

20010012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111667347 (or 1111667344 counting only the distinct ones).

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

Adding to 20010012102 its reverse (20121001002), we get a palindrome (40131013104).

The spelling of 20010012102 in words is "twenty billion, ten million, twelve thousand, one hundred two".