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1220102122001 = 7621728036079
BaseRepresentation
bin10001110000010011110…
…000001110101000010001
311022122022000101201021112
4101300103300032220101
5124442232120401001
62332301314503105
7154102160630510
oct21602360165021
94278260351245
101220102122001
11430495926964
12178569894a95
138b094199c59
14430a61d4677
1521b0e8c9cbb
hex11c13c0ea11

1220102122001 has 8 divisors (see below), whose sum is σ = 1394626763520. Its totient is φ = 1045633565088.

The previous prime is 1220102121971. The next prime is 1220102122007. The reversal of 1220102122001 is 1002212010221.

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

It is not a de Polignac number, because 1220102122001 - 26 = 1220102121937 is a prime.

It is a super-2 number, since 2×12201021220012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220102122007) 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, 13974521 + ... + 14061558.

It is an arithmetic number, because the mean of its divisors is an integer number (174328345440).

Almost surely, 21220102122001 is an apocalyptic number.

It is an amenable number.

1220102122001 is a deficient number, since it is larger than the sum of its proper divisors (174524641519).

1220102122001 is an equidigital number, since it uses as much as digits as its factorization.

1220102122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28042303.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220102122001 its reverse (1002212010221), we get a palindrome (2222314132222).

The spelling of 1220102122001 in words is "one trillion, two hundred twenty billion, one hundred two million, one hundred twenty-two thousand, one".

Divisors: 1 7 6217 43519 28036079 196252553 174300303143 1220102122001