1020001101012 has 24 divisors (see below), whose sum is σ = 2644447299200. Its totient is φ = 340000366968.

The previous prime is 1020001100983. The next prime is 1020001101023. The reversal of 1020001101012 is 2101011000201.

It is a happy number.

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 = 1020001100985 and 1020001101003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4722227212 + ... + 4722227427.

Almost surely, 2^{1020001101012} is an apocalyptic number.

1020001101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020001101012 is an abundant number, since it is smaller than the sum of its proper divisors (1624446198188).

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

1020001101012 is a wasteful number, since it uses less digits than its factorization.

1020001101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9444454652 (or 9444454644 counting only the distinct ones).

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

Adding to 1020001101012 its reverse (2101011000201), we get a palindrome (3121012101213).

The spelling of 1020001101012 in words is "one trillion, twenty billion, one million, one hundred one thousand, twelve".