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1220212000001 = 6779230533157
BaseRepresentation
bin10001110000011010010…
…011011000010100000001
311022122120200011002120002
4101300122103120110001
5124442443233000001
62332320241525345
7154104663603521
oct21603223302401
94278520132502
101220212000001
11430541954925
1217859a643855
138b0b0b8b917
14430b6a37681
1521b1938146b
hex11c1a4d8501

1220212000001 has 8 divisors (see below), whose sum is σ = 1254100379520. Its totient is φ = 1186784687088.

The previous prime is 1220211999991. The next prime is 1220212000097. The reversal of 1220212000001 is 1000002120221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1220212000001 - 226 = 1220144891137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220212003001) 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, 115261286 + ... + 115271871.

It is an arithmetic number, because the mean of its divisors is an integer number (156762547440).

Almost surely, 21220212000001 is an apocalyptic number.

It is an amenable number.

1220212000001 is a deficient number, since it is larger than the sum of its proper divisors (33888379519).

1220212000001 is an equidigital number, since it uses as much as digits as its factorization.

1220212000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230533303.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1220212000001 its reverse (1000002120221), we get a palindrome (2220214120222).

The spelling of 1220212000001 in words is "one trillion, two hundred twenty billion, two hundred twelve million, one", and thus it is an aban number.

Divisors: 1 67 79 5293 230533157 15445721519 18212119403 1220212000001