1000012011020 has 48 divisors (see below), whose sum is σ = 2313619199136. Its totient is φ = 360040320000.

The previous prime is 1000012010969. The next prime is 1000012011023. The reversal of 1000012011020 is 201102100001.

It is a junction number, because it is equal to n+sod(n) for n = 1000012010989 and 1000012011007.

It is not an unprimeable number, because it can be changed into a prime (1000012011023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22480301 + ... + 22524740.

It is an arithmetic number, because the mean of its divisors is an integer number (48200399982).

Almost surely, 2^{1000012011020} is an apocalyptic number.

1000012011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000012011020 is an abundant number, since it is smaller than the sum of its proper divisors (1313607188116).

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

1000012011020 is a wasteful number, since it uses less digits than its factorization.

1000012011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45005162 (or 45005160 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1000012011020 its reverse (201102100001), we get a palindrome (1201114111021).

The spelling of 1000012011020 in words is "one trillion, twelve million, eleven thousand, twenty".