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1201200330021 = 3696157520487
BaseRepresentation
bin10001011110101101000…
…111100111010100100101
311020211111201100012012220
4101132231013213110211
5124140024241030041
62315453535502553
7152532602224326
oct21365507472445
94224451305186
101201200330021
114234762a887a
12174973687a59
1389371196463
14421d1b0244d
15213a528dd66
hex117ad1e7525

1201200330021 has 8 divisors (see below), whose sum is σ = 1601830549824. Its totient is φ = 800685165120.

The previous prime is 1201200330017. The next prime is 1201200330091. The reversal of 1201200330021 is 1200330021021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201200330021 - 22 = 1201200330017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201200330091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28739361 + ... + 28781126.

It is an arithmetic number, because the mean of its divisors is an integer number (200228818728).

Almost surely, 21201200330021 is an apocalyptic number.

It is an amenable number.

1201200330021 is a deficient number, since it is larger than the sum of its proper divisors (400630219803).

1201200330021 is an equidigital number, since it uses as much as digits as its factorization.

1201200330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57527451.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1201200330021 its reverse (1200330021021), we get a palindrome (2401530351042).

The spelling of 1201200330021 in words is "one trillion, two hundred one billion, two hundred million, three hundred thirty thousand, twenty-one".

Divisors: 1 3 6961 20883 57520487 172561461 400400110007 1201200330021