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120212212001 = 722453310449
BaseRepresentation
bin110111111110100110…
…1001100100100100001
3102111021210111002122012
41233331031030210201
53432143311241001
6131120312522305
711453653641200
oct1577515144441
9374253432565
10120212212001
1146a88729142
121b36a9b0395
13b44a158cbb
145b655c7237
1531d89232bb
hex1bfd34c921

120212212001 has 6 divisors (see below), whose sum is σ = 139838695650. Its totient is φ = 103039038816.

The previous prime is 120212211967. The next prime is 120212212031. The reversal of 120212212001 is 100212212021.

It can be written as a sum of positive squares in only one way, i.e., 66332517601 + 53879694400 = 257551^2 + 232120^2 .

It is not a de Polignac number, because 120212212001 - 222 = 120208017697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120212212031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1226655176 + ... + 1226655273.

It is an arithmetic number, because the mean of its divisors is an integer number (23306449275).

Almost surely, 2120212212001 is an apocalyptic number.

It is an amenable number.

120212212001 is a deficient number, since it is larger than the sum of its proper divisors (19626483649).

120212212001 is an equidigital number, since it uses as much as digits as its factorization.

120212212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453310463 (or 2453310456 counting only the distinct ones).

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

Adding to 120212212001 its reverse (100212212021), we get a palindrome (220424424022).

The spelling of 120212212001 in words is "one hundred twenty billion, two hundred twelve million, two hundred twelve thousand, one".

Divisors: 1 7 49 2453310449 17173173143 120212212001