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121302212001 = 3731683132909
BaseRepresentation
bin111000011111000101…
…1001101110110100001
3102121002202111211112120
41300332023031312201
53441411331241001
6131420411214453
711522660534565
oct1607613156641
9377082454476
10121302212001
1147497a33293
121b613a47429
13b591c18109
145c2a2816a5
15324e481236
hex1c3e2cdda1

121302212001 has 16 divisors (see below), whose sum is σ = 163966571520. Its totient is φ = 79753196160.

The previous prime is 121302211973. The next prime is 121302212021. The reversal of 121302212001 is 100212203121.

It is not a de Polignac number, because 121302212001 - 222 = 121298017697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121302212021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3669535 + ... + 3702443.

It is an arithmetic number, because the mean of its divisors is an integer number (10247910720).

Almost surely, 2121302212001 is an apocalyptic number.

It is an amenable number.

121302212001 is a deficient number, since it is larger than the sum of its proper divisors (42664359519).

121302212001 is a wasteful number, since it uses less digits than its factorization.

121302212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49816.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121302212001 its reverse (100212203121), we get a palindrome (221514415122).

The spelling of 121302212001 in words is "one hundred twenty-one billion, three hundred two million, two hundred twelve thousand, one".

Divisors: 1 3 73 219 16831 32909 50493 98727 1228663 2402357 3685989 7207071 553891379 1661674137 40434070667 121302212001