1000522120000 has 140 divisors (see below), whose sum is σ = 2671814898676. Its totient is φ = 369423360000.

The previous prime is 1000522119941. The next prime is 1000522120021. The reversal of 1000522120000 is 212250001.

It can be written as a sum of positive squares in 10 ways, for example, as 966068820544 + 34453299456 = 982888^2 + 185616^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 442041 + ... + 1482040.

Almost surely, 2^{1000522120000} is an apocalyptic number.

1000522120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000522120000 is an abundant number, since it is smaller than the sum of its proper divisors (1671292778676).

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

1000522120000 is an equidigital number, since it uses as much as digits as its factorization.

1000522120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924126 (or 1924101 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

Adding to 1000522120000 its reverse (212250001), we get a palindrome (1000734370001).

The spelling of 1000522120000 in words is "one trillion, five hundred twenty-two million, one hundred twenty thousand".