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1212012112102 = 211215632554907
BaseRepresentation
bin10001101000110001100…
…011010010100011100110
311021212102012121122000021
4101220301203102203212
5124324200100041402
62324442441505354
7153364534654021
oct21506143224346
94255365548007
101212012112102
11428014270770
12176a904a225a
138a3a510054c
14429399ba1b8
15217d954ed37
hex11a318d28e6

1212012112102 has 16 divisors (see below), whose sum is σ = 1983385300032. Its totient is φ = 550888831720.

The previous prime is 1212012112049. The next prime is 1212012112121. The reversal of 1212012112102 is 2012112102121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803068 + ... + 1751839.

It is an arithmetic number, because the mean of its divisors is an integer number (123961581252).

Almost surely, 21212012112102 is an apocalyptic number.

1212012112102 is a deficient number, since it is larger than the sum of its proper divisors (771373187930).

1212012112102 is a wasteful number, since it uses less digits than its factorization.

1212012112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576483.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212012112102 its reverse (2012112102121), we get a palindrome (3224124214223).

It can be divided in two parts, 121 and 2012112102, that multiplied together give a palindrome (243465564342).

The spelling of 1212012112102 in words is "one trillion, two hundred twelve billion, twelve million, one hundred twelve thousand, one hundred two".

Divisors: 1 2 11 22 21563 43126 237193 474386 2554907 5109814 28103977 56207954 55091459641 110182919282 606006056051 1212012112102