1012001010102 has 48 divisors (see below), whose sum is σ = 2322232560960. Its totient is φ = 317618639856.

The previous prime is 1012001010089. The next prime is 1012001010103. The reversal of 1012001010102 is 2010101002101.

It is a happy number.

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 (1012001010103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9021148 + ... + 9132639.

It is an arithmetic number, because the mean of its divisors is an integer number (48379845020).

Almost surely, 2^{1012001010102} is an apocalyptic number.

1012001010102 is an abundant number, since it is smaller than the sum of its proper divisors (1310231550858).

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

1012001010102 is a wasteful number, since it uses less digits than its factorization.

1012001010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18153977 (or 18153974 counting only the distinct ones).

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

Adding to 1012001010102 its reverse (2010101002101), we get a palindrome (3022102012203).

The spelling of 1012001010102 in words is "one trillion, twelve billion, one million, ten thousand, one hundred two".