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1202000000000 = 21059601
BaseRepresentation
bin10001011111011100110…
…010000111010000000000
311020220120110001122012112
4101133130302013100000
5124143144000000000
62320105143314452
7152561452264562
oct21373462072000
94226513048175
101202000000000
11423846733758
12174b5744ba28
138946aa62067
1442269dc3332
152140059d235
hex117dcc87400

1202000000000 has 220 divisors, whose sum is σ = 3008529965364. Its totient is φ = 480000000000.

The previous prime is 1201999999987. The next prime is 1202000000009. The reversal of 1202000000000 is 2021.

It can be written as a sum of positive squares in 10 ways, for example, as 129300653056 + 1072699346944 = 359584^2 + 1035712^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202000000009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1999999700 + ... + 2000000300.

Almost surely, 21202000000000 is an apocalyptic number.

1202000000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1504264982682).

1202000000000 is an abundant number, since it is smaller than the sum of its proper divisors (1806529965364).

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

1202000000000 is an frugal number, since it uses more digits than its factorization.

1202000000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 1202000000000 its reverse (2021), we get a palindrome (1202000002021).

The spelling of 1202000000000 in words is "one trillion, two hundred two billion", and thus it is an aban number.