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10210001211111 = 313811322805059
BaseRepresentation
bin1001010010010011001101…
…1111101100111011100111
31100011001210112120002210010
42110210303133230323213
52314240040302223421
633414224303501303
72102435230236222
oct224446337547347
940131715502703
1010210001211111
113287045567149
12118a9248b7833
13590a5049a1a0
142742495aa5b9
1512a8bb414076
hex949337ecee7

10210001211111 has 16 divisors (see below), whose sum is σ = 14678591688320. Its totient is φ = 6275330327520.

The previous prime is 10210001211073. The next prime is 10210001211127. The reversal of 10210001211111 is 11111210001201.

It is not a de Polignac number, because 10210001211111 - 217 = 10210001080039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210001211131) 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, 161370901 + ... + 161434158.

It is an arithmetic number, because the mean of its divisors is an integer number (917411980520).

Almost surely, 210210001211111 is an apocalyptic number.

10210001211111 is a deficient number, since it is larger than the sum of its proper divisors (4468590477209).

10210001211111 is a wasteful number, since it uses less digits than its factorization.

10210001211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322805886.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 10210001211111 its reverse (11111210001201), we get a palindrome (21321211212312).

The spelling of 10210001211111 in words is "ten trillion, two hundred ten billion, one million, two hundred eleven thousand, one hundred eleven".

Divisors: 1 3 13 39 811 2433 10543 31629 322805059 968415177 4196465767 12589397301 261794902849 785384708547 3403333737037 10210001211111